Padres Continue to Padre, Sign Ha-seong Kim
Hours after trading for Blake Snell, and hours before swinging a deal for Yu Darvish, the Padres continued their remarkable post-Christmas shopping spree by signing Ha-seong Kim. Kim, a 25-year-old infielder who spent last season with the KBO’s Kiwoom Heroes, was listed as our eighth-best free agent in our top 50 roundup this fall, just ahead of Didi Gregorius and Justin Turner. Per Kevin Acee of the San Diego Tribune, it will be a four-year, $25 million deal. Additionally, Kiwoom will collect a bit of a tax, taking a $5 million release fee from San Diego.
In Kim, the Padres get a player who should claim a starting job right away, and potentially ascend from there. The best way to characterize his recent KBO production is to say that he’s outgrown the league. As the starting shortstop for one of the circuit’s better clubs, Kim has notched a 140 wRC+ in each of the last two seasons. He produced a .306/.397/.523 line last year, with 30 homers and more walks than strikeouts. He’s also swiped 56 bases in 62 tries over the last two years, a 90% clip. Mel Rojas Jr.’s absurd power production deservedly won him the KBO MVP award last season, but make no mistake: Kim was the brightest prospect in the league.
The scouting report backs up the numbers. A tremendous athlete, Kim’s a plus runner with quick hands and a plus throwing arm. At the plate, he has a mature approach, displaying good patience without being passive. Most of his power comes to the pull side, and he adeptly hunts pitches he can drive: Both his swing rate and whiff rate were above average last year, notable in a league that runs a lot of deep counts.

(The image above comes from Ben Howell’s astonishingly good KBO Wizard)
Kim doesn’t have a ton of raw thump — the highest exit velo I saw from him last year was 105 mph, which would be toward the bottom of MLB hitters — but he has a knack for hard contact and projects to have doubles power at the highest level. Strictly from a power perspective, his upside looks something like Paul Dejong’s. It’s an imperfect direct comparison because Kim projects to make much more contact, but like DeJong, he could post outsized homer totals by consistently lining inside pitches into the first few rows of the left field seats.
Defensively, he’s a bit more raw. Eric Longenhagen put a 70 on his arm, and while I very rarely quibble with a guy who has forgotten more scouting than I’ve learned, I’m going to on this occasion: I think it’s a grade lighter, and on top of that his arm isn’t particularly accurate, nor all that strong when he’s on the run. Both of those things take some of the juice out of his range, which is as good as you’d expect from a quick-twitch 60-runner. He clangs a few more balls than your average big league shortstop though (it’s possible that the subpar quality of some KBO diamonds is to blame for that) and the entire package seems a bit light for the six. Fernando Tatis Jr. may eventually move away from short, but it won’t be for Kim. Even at second base though, a patient hitter with a potential six bat and average game power is a damn good player.
At this point, you’ve probably intuited that there’s a bit of a discrepancy between Kim’s lofty billing and the weight of his paychecks. It’s not a particularly long deal and it’s a huge raise for Kim, but $30 million seems like an awfully good bargain for a player with his talent. While there’s some risk here for San Diego, Kim is the best position player to ever hop over from the KBO, and it’s odd that nobody mustered more than Evan White-money for his services.
Speaking of risk: As a 25-year-old with very limited experience against MLB-caliber pitching, there’s a chance that elite fastballs and hard benders prove too vexing to justify his spot in the lineup. The KBO is chalk-full of arms who can spin a slow curve and pelt the corners with 88-90 mph fastballs, but there are only a handful of guys who can touch 95. While Kim has seen that kind of velocity in short spurts during spring training and in international competition, facing it every day will be a different matter. Even if he’s up to the task in the long run, there may be an adjustment period in his future.
There aren’t many direct comparisons you can make here either, as only a handful of KBO position players have crossed the Pacific in recent years and none were as young or as athletic as Kim. As an infielder with defensive flexibility, Jung Ho Kang is probably the closest comparison, though he was 27 and sturdier when he signed with Pittsburgh. Kang posted a 130 wRC+ across his first two big league seasons, and his success at the plate demonstrates that it’s possible for a KBO veteran to make a quick impact in the majors. The other four KBO players who swapped continents struggled, though they were either considerably less talented than Kim or much older and one-dimensional. For what it’s worth, ZiPS loves him, and thinks he’s a budding 3.5-win player:
| Year | BA | OBP | SLG | AB | R | H | 2B | 3B | HR | RBI | BB | SO | SB | OPS+ | DR | WAR |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2021 | .274 | .343 | .477 | 503 | 80 | 138 | 29 | 2 | 23 | 82 | 51 | 95 | 17 | 117 | 0 | 3.8 |
| 2022 | .273 | .344 | .482 | 494 | 80 | 135 | 30 | 2 | 23 | 83 | 51 | 97 | 15 | 118 | 0 | 3.8 |
| 2023 | .271 | .344 | .492 | 490 | 80 | 133 | 30 | 3 | 24 | 83 | 52 | 100 | 16 | 121 | 0 | 3.9 |
| 2024 | .270 | .344 | .490 | 478 | 78 | 129 | 29 | 2 | 24 | 82 | 52 | 97 | 15 | 120 | -1 | 3.7 |
| 2025 | .270 | .343 | .490 | 467 | 76 | 126 | 28 | 3 | 23 | 80 | 50 | 91 | 15 | 120 | -2 | 3.5 |
On paper, this should be a great match of player and team. Kim joins a very competitive club but one that has the flexibility to take things a bit slow if he struggles at the outset. In theory, the alignment that makes the most sense is to slot Kim in as the starting second baseman while shifting Jake Cronenworth to the outfield. But if he slumps out of the gate, or if the Padres want to bring him along slowly, Cronenworth can slide back to second, as the Pads have capable reinforcements in the outfield.
The ever-changing nature of the ball makes it difficult to assess how Petco Park will affect Kim’s production. To hedge slightly, Kim’s right-handed bat and pull-side power seem to suit the park as well as any other skill set. Petco has historically been brutal for lefties, but Kim has only modest thump to right center and rarely hits the ball well in the air to straightaway right. And even if a de-juiced ball dampens his home run power, the large alleys should foster a few hustle doubles and perhaps an extra triple or three on balls in the gap.
Kim would have been a great fit for plenty of teams and he’s a boon for San Diego. On top of recent trades for Mike Clevinger, Snell, and Darvish, Kim’s arrival is the latest sign that the Friars aim to upset the balance of power in the NL West. The Dodgers still loom as the best team in baseball, but their margin of error in the division has narrowed considerably. A comparative down year in Los Angeles, like the one they endured in 2018, would open the door San Diego.
That the division is in question at all is something worth celebrating. The Dodgers have had a vice grip on the crown since 2013 and it’s undoubtedly a healthy development for the sport that the defending champions are facing a legitimate threat from their long-dormant southern neighbor. If nothing else, hopefully these moves portend a rush of activity over the next few weeks.
Brendan covers prospects and the minor leagues for FanGraphs. Previously he worked as a Pro Scout for the Pittsburgh Pirates.
Vise grip.
Vice grips only come from certain well paid girls!
Chock full
I would be surprised if the power translates as well as projected. Seems like the DeJong upside is more the expectation according to ZIPs. I would think he ends up more in the 15-20 HR range given a full season of PAs.
There are all kinds of questions about how his offense is going to translate with the spotty history of KBO guys in MLB, and I’ve now read several different takes on his defensive capabilities. So for a 25-year old guy I think we’re at a total loss to describe what happens next.
I read somewhere that the Padres are one of the only teams with a full-time scout in South Korea, between that and the fact they were (almost certainly) the high bidder here I’m going to guess they’re just more confident in this profile than other teams.
But I’m stumped. There is a world where he comes over, runs a a 115 wRC+, adds value on the bases, and plays plus defense at second base. That’s a 4-win player. There’s also a world where he can’t make accurate enough throws to first, even from second base, so he has to move to the outfield, and where he also has trouble adjusting to MLB pitching and winds up being a 1-win guy. I have no idea what to expect here.
But even a 1 win player at $6 million is a coup
Maybe for a 1 win player with reasonable 4 win upside. But teams don’t pay $6M for 1 WAR players. $/WAR is not linear and there’s plenty examples to prove it.
For a reliever, absolutely.
(you can find all kinds of things to pick at within that four-word statement, but if you do, you will find your argument will rapidly unravel)
Even factoring in the posting fee, this only costs the Padres $30 million for 4 years. While there is uncertainty around the player, it seems to me that the contract makes it so that there is a ton of upside here.
I also love how San Diego is basically giving themselves every opportunity to win a championship at some point over the next 3 years or so. What a terrific job they have done consolidating resources.
Wow, those ZIPS projections really beat the pants off what Depth Charts is showing (.315 2021 wOBA). If Kim shows that kind of power/speed combo ZIPS foresees, he will be a very popular fantasy player. Interested to see if the Padres turn him loose on the bases…
led the league with 55 SB at a ~81% success rate last season, with the bulk of that coming from tatis jr., grisham, profar, pham, and machado. profar is probably out with kim/cronenworth at 2b and cronenworth/pham in left.
really love this acquisition, especially at $30M. having a super utility platoon is going to be incredibly convenient, hopefully tingler takes advantage of it.
There is uncertainty about every player. All I am going to do is sit back and wait to see if Ha-seong Kim can play or not then make a determination on his future value. Who would have predicted that Lewis Brinson couldn’t hit a lick or that Jo Adell is sending out Brinson like vibes? When the best player I have ever seen was 5’10” and 175 pounds yet managed to hit 660 HR’s or that the best all-around player in the game today is a 5th round draft choice who is 5’9″ tall, or the best pitcher I ever saw was deemed to be too small and was traded for Delino DeShields, I tend to value the eye test a lot more than a computer produced template of what constitutes the required requirements to be a major league player of the highest level. This is not meant to say that I am predicting stardom for KIm but what I see as an increasing tendency to pigeon hole players before they ever play a game based on nothing more than a spreadsheet.
OK, great. But you have to decide whether to offer them a contract, and for how much, now. This very site predicted great things for Mookie and also identified Brinson as a toolsy high-variance prospect with significant bust potential, by the way.
Trout in the 5th round? 😉
The NL west is officially going to be the most fun division in baseball (if it weren’t already).
Maybe he can be like jung ho kang before kang became an alcoholic idiot.
Make fun of ppl who have diseases. Great.
Alcoholism is a disease, but it’s the only disease you can get yelled at for having…
–M Hedberg
Well, that and Tourette’s Syndrome.
Snark following snark.
Eh, I wouldn’t go out of my way to criticize his alcoholism but I don’t think it’s unfair to call the guy with a million DUIs and a sexual assault accusation an idiot
I am a Padres fan and I am excited about this and the other Padres moves. I say put Kim at 2b and get comfortable. Cronenworth has shown in his brief season that he can move around the infield and continue to hit. He can probably play the OF as well.
C: Nola, Campusuno
INF: Hosmer, Kim, Tatis, Machado
OF: Pham, Myers, Grisham
Super Utility: Cronenworth
Probably need an extra OF, but with so much positional flexibility, SD might be able to carry a designated pinch hitter, which used to be fun, but are now all but extinct.
Love how the Pads are going for it. But if I am SF, Colorado, or Arizona, I would be looking to dump as all the talent that I did not expect would be championship caliber in 2023 for whatever I could get, because with LA and now SD in front of you, even a road to a Wild Card is going to be pretty harsh.
I see this- but it would be terrible if every other team in the division tanks. The league needs to do something to make a response like this less palatable. Though, in this case, I think I disagree even here. There are two wild cards and the central is weak. The imbalanced schedule hurts, but the third place west team only needs to surpass the second place east team, I’m guessing Washington or NY. That’s doable.
I wonder about Nola and Cronenworth. They paid a kings ransom for Nola, so you would have to think he is going to play vs LHP even if Darvish is pitching, but Kim is also a RHB. With that said year after year I wonder about playing time and it always seems to basically work itself out. Having too many good players is rarely an issue.
I understand that Nola also plays the infield, but I don’t think that Nola will compete much with Cronenworth and Kim for playing time.
I agree that I used to wonder about playing time a lot, but it seems to work itself out. In the early 1990s the Padres had two stud young catchers, Benito Santiago and Sandy Alomar Jr. they saw this as a logjam so they traded Alomar. That was dumb. Especially at catcher. Just have them split time and have one or both of them also play 1b.
I hope the Padres carry a full time pinch hitter in 2021.
I suspect that Eric Hosmer is about to turn into a very expensive platoon player if everyone is healthy. Caratini is better against left-handed pitching than Hosmer and I have to imagine Cronenworth is too. You’d think Nola would be too, although Nola (weirdly) has a reverse platoon split for his career, although I don’t really buy that reverse platoon splits are real unless presented with overwhelming evidence. So I suspect he’d be in the mix at first base too.
Bottom line: Don’t worry about tough lefties. The only left-hander that will be in the lineup on those days will be Grisham.
“Kim is the best position player to ever hop over from the KBO.”
Kim is not even the best shortstop from Heroes to come to MLB.
Kim topped out at wrc+ 142 in KBO.
Kang had two seasons with wrc+ 175 or higher.
Pre-DUI Kang was a very good MLB player, something Kim can be, but is far from a sure thing.
I think, the thought here is that Kim’s upside is greater as he’s younger and is the better athlete. Though, yeah, it’s easy to forget how good Kang was. Especially because, even in the states, he toiled away in obscurity.
The Pirates won 98 games in Kang’s best year (his rookie year).
Kang was like four years older when he came over, though
Wow the padres are good! When ZIPs released the Padres analysis I figured them to be around a hundred wins, but still roughly 10 short of the Dodgers. However, now they have really narrowed that gap, so if the Dodgers suffer any kind of hangover the Padres could have the best record in baseball. The NL has 4 great teams in 2 divisions. That’s weird.
I like the Braves, but they are only a very good team. They aren’t at the level of LA or SanDiego. The Nats are, generously, a step behind the Braves.
I’m starting a petition to ban the names Padres and Friars. I’m insulted. My PC Wokeness is deeply offended.
Thank you for supporting Fangraphs by becoming a member … however … we beg you to please offer something more than this as commentary. C’mon.