Yoan Moncada’s Approach Is Actually Working

On Wednesday, Yoan Moncada hit a grand slam and stole a base. Those were the notable accomplishments for the White Sox’ 22-year-old second baseman in Chicago’s game at Oakland. In a less remarkable but still relevant development, Moncada recorded his 300th plate appearances for the White Sox since his debut with the club last June.

Three years ago today, Moncada had yet to play a professional game in the United States, and while he came with considerable hype and pedigree, his play thus far has mostly lived up to the lofty expectations. Here’s his line with the White Sox since his promotion last season.

Yoan Moncada with the White Sox
Name PA HR BB% K% ISO BABIP AVG OBP SLG wRC+ BsR Off Def WAR
Yoan Moncada 305 11 12.8 % 33.8 % .187 .331 .229 .336 .416 106 3.7 6.1 1.5 1.8

A combination of good patience, decent power, and solid speed have allowed Moncada to mitigate the effects of his one real weakness (swinging and missing) and permitted him to produce solid numbers. And while we can’t simply double the numbers here to arrive at a full-season forecast for Moncada, our Depth Chart projections nevertheless call for an average offensive performance and roughly three-win season in 2018.

If there’s a number that jumps out, however, it’s the one caused by his aforementioned weakness: Moncada has struck out more than a third of the time with the White Sox overall and in just under 40% of his plate appearances this season. That number is scary high. While Moncada has incredible tools, it could be difficult for him to capitalize on his immense talent if he fails to discern strikes from balls.

Fortunately, at least from the scouting perspective, it doesn’t actually appear to be plate discipline that’s Moncada’s problem. In Kiley McDaniel’s chat earlier this week, he was asked about Moncada’s strikeouts. This was the exchange:

Turk: Does Moncada have bad plate discipline, or just bad bat to ball skills?

Kiley McDaniel: Pitch selection is fine, most of what he does is well above average. Bat control is below average.

Eric Longenhagen said the same thing in his evaluation of Moncada prior to the 2017 season:

His bat control is mediocre right now, and I think this is part of why he has struck out so much (30% of the time at Triple-A, 60% in a short big-league stint) during his career.

It’s worth exploring what this means statistically and to find how similar hitters have fared. Here are Moncada’s plate-discipline numbers during his time with the White Sox relative to those produced by the league in recent years:

Yoan Moncada Plate Discipline
Name O-Swing% Z-Swing% Swing% O-Contact% Z-Contact% Contact% Zone% F-Strike% SwStr%
Moncada 24.9 % 64.6 % 42.4 % 55.4 % 77.4 % 70.1 % 44.0 % 58.4 % 12.7 %
League 2015-17 30.3 % 66.8 % 46.6 % 63.9 % 86.1 % 78.2 % 44.8 % 60.5 % 10.2 %

Moncada swings at fewer pitches outside the zone than the average major leaguer. When he does swing, though — whether in or out of the zone — he also misses more than most. That lends credence to McDaniel’s eye. Moncada does a decent job determining the pitches at which he should swing; he just manages to miss a fair amount. 

To determine how hitters with similar profiles have fared, I looked at all players with at least 1,000 plate appearances from 2015 to -17 and examined their plate-discipline numbers. First, I looked at the 58 players with swinging-strike rates within two percentage points of Moncada’s 12.7% mark to create a reasonable cohort. Here were those averages.

You Aren't a FanGraphs Member
It looks like you aren't yet a FanGraphs Member (or aren't logged in). We aren't mad, just disappointed.
We get it. You want to read this article. But before we let you get back to it, we'd like to point out a few of the good reasons why you should become a Member.
1. Ad Free viewing! We won't bug you with this ad, or any other.
2. Unlimited articles! Non-Members only get to read 10 free articles a month. Members never get cut off.
3. Dark mode and Classic mode!
4. Custom player page dashboards! Choose the player cards you want, in the order you want them.
5. One-click data exports! Export our projections and leaderboards for your personal projects.
6. Remove the photos on the home page! (Honestly, this doesn't sound so great to us, but some people wanted it, and we like to give our Members what they want.)
7. Even more Steamer projections! We have handedness, percentile, and context neutral projections available for Members only.
8. Get FanGraphs Walk-Off, a customized year end review! Find out exactly how you used FanGraphs this year, and how that compares to other Members. Don't be a victim of FOMO.
9. A weekly mailbag column, exclusively for Members.
10. Help support FanGraphs and our entire staff! Our Members provide us with critical resources to improve the site and deliver new features!
We hope you'll consider a Membership today, for yourself or as a gift! And we realize this has been an awfully long sales pitch, so we've also removed all the other ads in this article. We didn't want to overdo it.
Yoan Moncada Plate Discipline and Free Swingers
Name O-Swing% Z-Swing% Swing% O-Contact% Z-Contact% Contact% Zone% F-Strike% SwStr%
Moncada 24.9 % 64.6 % 42.4 % 55.4 % 77.4 % 70.1 % 44.0 % 58.4 % 12.7 %
Comps* 31.8 % 70.7 % 48.8 % 59.1 % 83.4 % 74.5 % 43.7 % 60.6 % 12.4 %
*Comps are those players with at least 1,000 PA from 2015-17 and swinging-strike rates within two percentage points of Moncada.

Players with swinging-strike rates similar to Moncada tend to swing more often than he does. Even though they have high swinging-strike rates, though, they still make more contact than Moncada.

What’s interesting about Moncada’s out-of-zone mark is that almost no one in the league who swings and misses like Moncada also swings at pitches out of the zone with such little frequency. From 2015 to -17, only one player, Matt Joyce, had an O-Swing% lower than Moncada’s with the White Sox and a similar swinging-strike rate. Among the group of similar whiffers, here are the 12 hitters who swing outside of the strike zone the least.

Yoan Moncada Combines Whiffs and Discipline
O-Swing% Z-Swing% Swing% O-Contact% Z-Contact% Contact% Zone% F-Strike% SwStr%
Matt Joyce 21.4% 67.9% 42.1% 55.9% 81.2% 74.1% 44.7% 55.9% 10.9%
George Springer 24.9% 72.0% 46.0% 61.3% 80.1% 74.5% 44.7% 60.5% 11.7%
Jason Castro 25.2% 68.0% 45.2% 53.0% 78.3% 70.8% 46.8% 59.3% 13.2%
Luis Valbuena 25.3% 69.3% 44.7% 62.4% 82.3% 76.0% 44.0% 56.1% 10.7%
Brandon Belt 25.6% 78.6% 47.7% 60.0% 82.8% 75.7% 41.7% 57.3% 11.6%
Domingo Santana 25.6% 68.2% 44.5% 49.2% 79.4% 69.8% 44.4% 60.7% 13.5%
Justin Upton 25.7% 67.0% 44.3% 55.8% 78.3% 71.2% 45.2% 57.4% 12.7%
Mike Napoli 25.8% 64.9% 43.3% 56.6% 79.6% 72.0% 44.6% 56.0% 12.1%
Jonathan Villar 26.3% 67.3% 44.9% 58.4% 81.2% 73.9% 45.3% 59.4% 11.7%
Joc Pederson 26.4% 64.4% 42.2% 56.4% 81.3% 72.2% 41.5% 56.4% 11.7%
Steven Souza Jr. 27.1% 70.1% 46.3% 51.7% 77.7% 69.3% 44.6% 64.6% 14.2%
Mark Reynolds 27.6% 68.8% 45.6% 52.1% 80.2% 70.6% 43.7% 57.4% 13.4%
AVERAGE 25.6% 68.9% 44.7% 56.1% 80.2% 72.5% 44.3% 58.4% 12.3%
Yoan Moncada 24.9% 64.6% 42.4% 55.4% 77.4% 70.1% 44.0% 58.4% 12.7%

When it comes to plate-discipline numbers and swinging strikes, these are the hitters Yoan Moncada resembles most. If you were looking for the player closest in numbers to what Moncada has done, that’s probably Justin Upton. That seems like good news for Moncada. Here’s how these players have fared in terms of results…

Yoan Moncada Plate Discipline Pals
Name BB% K% ISO AVG OBP SLG wRC+
George Springer 11.1 21.8 .208 .272 .364 .480 132
Brandon Belt 13.6 24.0 .206 .268 .371 .474 131
Justin Upton 10.2 27.5 .230 .256 .336 .487 120
Domingo Santana 11.6 30.9 .212 .265 .358 .477 120
Joc Pederson 14.0 26.6 .218 .223 .345 .442 116
Luis Valbuena 11.5 23.7 .216 .226 .318 .442 108
Steven Souza Jr. 10.7 31.9 .189 .238 .327 .426 107
Matt Joyce 13.8 22.0 .199 .225 .337 .423 107
Jonathan Villar 9.6 27.0 .153 .269 .339 .421 101
Mark Reynolds 10.6 27.8 .188 .261 .342 .449 101
Mike Napoli 11.5 29.7 .217 .220 .317 .438 99
Jason Castro 10.6 29.9 .156 .221 .308 .377 88
AVERAGE 11.6% 26.9% .199 .245 .339 .445 111
Yoan Moncada 12.8 % 33.8 % .187 .229 .336 .416 106
Numbers from 2015-17.

All the hitters here have performed in a very similar fashion in terms of walks and power. The strikeouts are high and the batting averages low. The on-base percentages tend to compensate for the low averages due to walks, though. The combination generally produces an above-average hitter.

It has worked well for Moncada thus far. If he could cut down his strikeouts just a little bit and lock into his somewhat untapped power, his baserunning and at least average defense would turn him into an All-Star. With no improvements, he’s already an above-average regular in the midst of just his age-23 season. If the strikeouts get higher and the BABIP or ISO get lower, Moncada could fall below average, but given his immense talents and performance thus far, improvement seems more likely than staying the same or getting worse. Moncada isn’t all the way there yet, but his potential is starting to show for the White Sox.





Craig Edwards can be found on twitter @craigjedwards.

49 Comments
Oldest
Newest Most Voted
Joe Joe
8 years ago

Thanks! This is something I’ve been following as he is such an extreme player.

Eminor3rdMember since 2019
8 years ago

The interesting part of this is that the mainstream perception of Moncada’s performance is that it is disappointing, and it appears it feels that way in the clubhouse as well. Moncada has been visibly frustrated in the dugout lately and has even had kind of a spat with Renteria the other day, who was trying to calm him down.

I wonder what kind of effect this has — where the process, though not finished, appears to be working objectively, but it feels like it isn’t working to the hitter.

scotttttttttttt
8 years ago
Reply to  Eminor3rd

Wellllll, that spat had to do with missing a sac squeeze sign more than the strikeouts I think.

Eminor3rdMember since 2019
8 years ago

Ahhh ok, that makes sense.

rhdx
8 years ago

Thank you for the analysis. In watching him I actually wonder about his vision but perhaps it is something in his swing mechanics that could be improved with a few minor tweaks. As a Sox fan I am hoping for big things from Moncada.

nckdmss
8 years ago
Reply to  rhdx

The Athletic did a profile on Moncada and Tim Anderson preseason. A snippet:

“Yoán Moncada got a present of sorts Thursday morning from White Sox trainer Herm Schneider: a pair of very understated, thin-framed eyeglasses.”

And:

“He don’t need to wear those things,” said Anderson, who has ditched the glasses he wore through the second half last season. “It wasn’t a good experience for me. I always take my hat off and they would always fog up. So I was trying to tell him ‘You don’t need those,’ because I think his vision is kind of like mine, so he won’t need them.”

Jetsy Extrano
8 years ago
Reply to  nckdmss

“because I think his vision is kind of like mine, so he won’t need them.”

Oh, ballplayers.

sadtromboneMember since 2020
8 years ago
Reply to  nckdmss

Please tell me that baseball players aren’t running out there with 20/60 vision and no contact lenses or glasses.

LHPSU
8 years ago
Reply to  nckdmss

If your vision is kind of like Tim Anderson’s, that’s a very good reason to need glasses.

Career 3% BB/26.7% K

sgp2204
8 years ago
Reply to  LHPSU

Well, he is at 9.2% BB/22.4% K, so maybe he’s onto something?

But for real, that’s some sort interesting logic.

Art VandelayMember since 2025
8 years ago

I’m surprised Sanó didn’t end up on any of these lists. When I think of crazy K numbers with plate discipline that’s immediately who I think of.

sadtromboneMember since 2020
8 years ago

For reference, Kiley sees tools, bat control, and plate discipline as the three different “parts” of the hit tool.

https://www.fangraphs.com/blogs/scouting-the-hit-tool-pt-2/

The question is how well a player can actually improve bat control when they’ve been in MiLB/MLB for 1400 PAs. Kiley later in the series says a guy who has been in the pros for 3 years “is who he is” in most cases, and in Moncada’s case he’s just about at that level (not including what he was doing in Cuba, which was before a relatively long layoff).

I wouldn’t count on the BABIP to regress because of the power he has, but I’m also not really all that convinced he’s going to go beyond Keon Broxton in strikeout department. I get the sense that he could be (maybe already is) the kind of guy Jeff was hoping Keon Broxton would be a couple years ago–a guy who mashes the ball when he gets his bat on it but who doesn’t do it all that much, and who plays a premium defensive position well. That’s a 3-4 win player, and a guy pretty much all but about 5 teams would want instead of their current guy at 2nd.

https://www.fangraphs.com/blogs/how-keon-broxton-looks-like-the-brewers-best-player/

Here’s the X-Factor that Craig doesn’t talk about though, mostly because it’s not very relevant to the article: Moncada’s baserunning. Check out this leaderboard right here…
https://www.fangraphs.com/leaders.aspx?pos=all&stats=bat&lg=all&qual=y&type=8&season=2018&month=0&season1=2018&ind=0&team=0&rost=0&age=0&filter=&players=0&sort=18,d

That’s Dee Gordon on the basepaths. Is that really a likely outcome? Maybe, maybe not, but that’s where I’m going to guess that’s the most unstable part of his profile so far.

Rational FanMember since 2025
8 years ago
Reply to  sadtrombone

His BABIP shouldn’t regress a lot because as of 4 days ago he had the highest exit velocity in baseball by nearly 3 MPH. He swings and misses a lot, but when he makes contact he hits the ball harder than everyone in baseball. I’m surprised that wasn’t mentioned here.

Mahoney
8 years ago
Reply to  sadtrombone

He’s a lot like Alfonso Soriano but with much better plate discipline (and a better glove. ) So he should get on base often enough to take advantage of his plus speed, unlike Soriano, and maybe those baserunning runs are a sustainable trait.

Which would make him like a second base playing version of Bobby Bonds.

Ukranian to Vietnamese to French is back
8 years ago
Reply to  Mahoney

It’s very similar to Alfonso Soriano, but with much better discipline of the disc (and better glove). So I have to go on a fairly regular basis to use speed as opposed to Soriano, and maybe baserunning races have long lasting qualities.

To do this as a second base player, select the version of Bobbi Bonds

joshua.barron1
8 years ago
Reply to  Mahoney

This literally just made my day

MRDXolMember since 2021
8 years ago
Reply to  sadtrombone

Longenhagen graded his speed at double-plus, a 70, so it’s more a question of decision-making and aggressiveness than athleticism. To me, the wild card is his defense; he’s shown incredible range as would be expected given the raw speed, but wasn’t the slickest last year. There’s a higher and more easily reached ceiling of value with defense than baserunning; last year, 11 players recorded at least +5 baserunning runs add, but 41 players did that with defense, and there were 10 players whose defensive contributions exceeded that of the top baserunner, Buxton, at +11.8.

MikeSMember since 2020
8 years ago

He also hits the ball really hard when he makes contact. I’m not sure how long the numbers take to normalize, but according to Statcast’s leader boards, he is third in MLB in average exit velocity and first in hard Hit %.

Like you said, if he could cut down on the strikeouts and increase his contact, he could be a monster and his floor seems to be at least as an above average starter. That kind of offensive potential and production is pretty rare at second base where his defense seems to be at least adequate to not have to move to the outfield. Even if he cuts down his swing a little and doesn’t hit the ball quite so hard his speed will still turn some outs into base hits.

Are there comparable cases of guys who did manage to improve their contact rates without sacrificing exit velocity?

Dominikk85Member since 2020
8 years ago
Reply to  MikeS

Kris bryant did. Sacrificed a little bit of EV (and LA) but still hits it hard with a lot better K rate

carterMember since 2020
8 years ago
Reply to  Dominikk85

And he got worse for it… Soooo

Da Bum
8 years ago
Reply to  carter

He did? Please explain exactly how.

scotttttttttttt
8 years ago

Try explain this to White Sox twitter. They’ve already declared him a bust.

Rational FanMember since 2025
8 years ago

What? The Chicago White Sox declared one of their players a bust?

scotttttttttttt
8 years ago
Reply to  Rational Fan

White Sox Twitter = fans of the White sox on Twitter. I apologize if that was unclear.

LHPSU
8 years ago
Reply to  Rational Fan

Chicago White Sox
@whitesox
9 hours ago

@ymoncada19 is a bust.

8:56 am – 21 Apr 2018

Shalesh
8 years ago

He looks more like Souza (almost carbon-copy) than Upton to me in the data that Craig offers. Albies looks the best of his co-hort and Moncada the worst hitter, though his defense should put him ahead of Devers & Benintendi and maybe Swanson in fWAR.

comment image

scotttttttttttt
8 years ago
Reply to  Shalesh

How about we give Moncada, Devers, and Albies a full year of MLB at bats before we compare them to Benintendi and Swanson?

Shalesh
8 years ago

We could wait for their careers to finish, but I thought it would be interesting to see how the top-5 position player prospects pre-2017 are doing now.

WoundedSprinterMember since 2018
8 years ago
Reply to  Shalesh

And cherry-pick a difference in 2018 fWAR of 0.2.

Whatever rocks your boat, I guess.

I think I’ll go with Benintendi or Albies on those numbers. Call me premature.

Groundout
8 years ago

It’s not like Swanson (<800 career PA) and Benintendi (<600 career PA) have put up very significant bodies of work. Trying to rank any of the five against each other is extremely speculative.

CousinNicky
8 years ago
Reply to  Shalesh

Also this is incredibly misleading without AB’s or games played (for context Devers and Albies played 1/3 of a season versus Benintendi and Swanson who played complete seasons. Oh and what list were you looking at that had albies as a top 5 prospect. I dont recall seeing him on anyones top 15 last year

Shalesh
8 years ago
Reply to  CousinNicky

The BOARD. #11 on Eric’s 2017 prospect list. (You can knock me for leaving out guys like Bregman, Ray, Judge, Bellinger, etc.)

Feel free to make your own table and share it.

AJSKENSTON
8 years ago

awesome article! thanks craig

Daniel SteinbergMember since 2016
8 years ago

I think his strikeouts will go down. His batting eye is actually pretty good, he should be able to have lower strikeouts even at his bad contact rate.

jacob2Member since 2020
8 years ago

It may be right that Moncada has an issue with “bat control,” something that feels a bit nebulous. Just watching him, though, it seems as if he has a very undeveloped mental approach at the plate. He has tremendous feel for the strike zone, but he doesn’t show much feel at all in terms of which pitches he should be looking for, what pitch he should be getting in a given situation, etc.

He gets so surprised that he can’t even swing fairly often. Perhaps with better bat control he would convert some of his milder surprise into contact, but I suspect that if he gets his mind right — that is, he doesn’t allow the strikeouts to bother him so much that he regresses — he should ultimately start making more contact on the basis of understanding how he’s being pitched.

sgp2204
8 years ago
Reply to  jacob2

I agree to an extent. That being said, he is only 22 years old, so it’s hard to fault him for having an undeveloped mental approach. Hopefully that’s something that the coaches and Abeu can help him with over the next couple years.

Dominikk85Member since 2020
8 years ago

I actually think it is a bad sign that he whiffs with solid plate discipline. Plate discipline is not easy to fix but bat control and misses in the zone might be a bigger concern.

There is room to grow and the walks lift the floor some (like with c. Davis) but still super high k guys don’t tend to have the longest careers.

if he can lower Ks to mid 20s he can be a beast but if he is chris carter with speed and defense that is not terrible either.

Dave TMember since 2025
8 years ago
Reply to  Dominikk85

Dave Cameron made almost exactly that point about Schwarber’s hitting and in-zone contact percent a couple years ago – https://www.fangraphs.com/blogs/the-value-of-kyle-schwarber/

The context of the player’s overall value is obviously quite a bit different, as you note. As a second baseman with positive baserunning value and at least the potential for positive defensive value, Moncada doesn’t need to be a great hitter to still be a very valuable overall player: he could still be a very valuable player as even a “good but not great” hitter.

ice_hawk10
8 years ago

makes you wonder why the league doesn’t just fill the strikezone if his contact ability is so bad, especially with breaking pitches. you might give up a couple dingers, but his OBP would plummet.

Dominikk85Member since 2020
8 years ago
Reply to  ice_hawk10

Well he can hit dingers. But I also think pitchers are too passive on some low contact power hitters. Adam Dunn in his .160 with 10 homers year still walked a ton.

I would say make him hit it until he shows you something but of course no pitcher wants to be the guy giving up a 3 run homer.

bananas
8 years ago
Reply to  Dominikk85

It turns out throwing a ball accurately is hard…

Dave TMember since 2025
8 years ago
Reply to  Dominikk85

I’ll second bananas point, and add some context to that:

– The numbers in the post still show Moncada making contact on almost exactly 50% of pitches thrown in the strike zone (64.6% Z-Swing % multiplied by 77.4% Z-Contact %).

– When Moncada does make contact and put the ball in play, he looks to make solid contact. His Fangraphs page shows a 38.5% hard contact percent so far in his career and only 11.8% soft contact.

– And all of these results that we’ve seen so far are in the context of how pitchers have pitched Moncada to date: only 44.0% of pitches in the zone (as noted in the post) and seeing a total of about 40% sliders, curveballs, and change-ups (per the information at his Fangraphs page). In other words, Moncada might well make more contact, and continue generally to hit the ball pretty hard when he does make contact, if pitchers shifted to an approach of pounding the strike zone with a significantly higher percentage of fastballs.

phanb
8 years ago

I’ve been tracking him all year, and I’ve totally noticed this, would have been nice if you could have delved even deeper, and compared his right and left profiles…man if this kid could just get a little more contact against LHPs he would be a beast right now.

chazzycatMember since 2016
8 years ago

Interesting stuff! I particularly enjoyed the explanation of the difference between “pitch selection” versus bat-to-ball skills. I hadn’t thought of it that way before, but watching Brandon Belt for years it makes 100% sense. He’s amazing at pitch selection but not great at making contact, so he ends up with high walk and strikeout rates.

I guess if one wanted to quantify these things separately, Z-Swing minus O-Swing would serve as a good way to gauge “pitch selection” skill? And “bat-to-ball-skills” would be basically just Contact%…

MRDXolMember since 2021
8 years ago

Having watched Moncada a lot, I think a large part of his problem is actually passivity, letting very hittable pitches go by early in the count. All hitters are significantly better if a plate appearance starts 1-0 instead of 0-1, but so far the difference for him has been starker.

League 2015-17 wRC+ through count 1-0: 126
League 2015-17 wRC+ through count 0-1: 65

Moncada 2017-18 wRC+ through count 1-0: 150
Moncada 2017-18 wRC+ through count 0-1: 48

Maybe looking to ambush pitchers early in at-bats is part of the key for him to elevate his hitting.

sgp2204
8 years ago
Reply to  MRDXol

Absolutely agree. I can’t recall any other hitter letting so many fastballs go right down the middle of the plate to start an at-bat. I can appreciate his selectivity and patience, but at some point, he has to stop letting pitchers take advantage of him. I always find myself asking – “What pitch was he looking for?” And many times it feels like he’s just taking the pitch without any thought of location or pitch type.

Dan GreerMember since 2018
8 years ago
Reply to  sgp2204

I agree completely.

I believe there’s a psychological barrier to batting leadoff, in that guys hitting in that spot tend to act passively and not swing until there is a strike on them.

If I were Renteria, I’d consider telling Moncada not to concern himself with the fact that he’s hitting leadoff, and look for opportunities to crush grooved pitches, even on a 0-0 count. Maximize that incredible exit velocity and hard-hit %.

But I would leave him in the leadoff spot for now – he clearly has the plate discipline and speed, and it maximizes his number of plate appearances which can only aid his development.

PedroMartinez45
8 years ago

Random question: is this an issue with eye sight? Maybe not, since he has good strike zone recognition. For fantasy purposes, I’m always curious with who gets LASIK as another variable for possible improvement.