David Appelman is the creator of FanGraphs.

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triple_rMember since 2020
12 years ago

How about K-BB%+?

novaether
12 years ago
Reply to  triple_r

Just divide it by about 12%. It won’t account for park factors, but they’re so close to 1.00 for K% and BB% anyways, so who cares? It’s kind of a pointless exercise anyways, because what does it matter if David Price has a K-BB%+ of 2? That doesn’t mean his ERA should be half of the league average or anything.

triple_rMember since 2020
12 years ago
Reply to  novaether

Double anyways. #respect

a eskpert
12 years ago
Reply to  triple_r

#Ilovemesomestrikethrowers

Boom Shakalaka
12 years ago
Reply to  novaether

What do park factors have to do with Ks and BBs? Don’t park factors only affect Balls in Play?

AC of DC
12 years ago
Reply to  Boom Shakalaka

K and BB rates are included in the Park Factors information, and there are differences, park to park. Whether the differences are due to personnel, foul ground, the batter’s eye, players adjusting to expected run environment, some combination of factors, or merely meaningless variance has not, as far as I’ve read, been decisively established.

vecnyj
12 years ago
Reply to  Boom Shakalaka

One of the factors is that breaking balls can be more or less drastic due to the humidity, I believe.

David
12 years ago

Great stuff with the additions. One request: Can you include RA9 in the leaderboards and player profiles? It’s better than ERA, and you already have RA9 WAR, so it’d make sense to add it. Thanks.

Jonah Pemstein
12 years ago
Reply to  David

Yeah, I’ve wanted to see this for a while.

everdiso
12 years ago
Reply to  David

Would love to see both R/gm and RA/gm for team leaderboards, too.

Jeff
12 years ago

This is killing me to still see Jose at the top of all the leaderboards.

DavidKB
12 years ago
Reply to  Jeff

I was just gonna say the same thing.

Richard
12 years ago

Would a (K-BB%)/K% statistic be more useful? The closer to 1.00, the better. That way low strikeout pitchers who also have good control won’t get left out of the leader boards…Thoughts?

Pat
12 years ago
Reply to  Richard

Stats aren’t made to put everyone on the leaderboards. They are made so the highest are at the top and lowest at the bottom. No need to be fair by giving everyone a chance to be at the top

Evan
12 years ago
Reply to  Richard

Isn’t what you’re asking for just an obfuscated version of K to BB ratio?

Matt
12 years ago
Reply to  Evan

Yep, it is just K/BB, but displayed strangely.

(K-BB)/K = 1 – (BB/K), which will be in identical order to K/BB.

buddyglass
12 years ago

How about the same stat for hitters?

Rubén Amaro, Jr.
12 years ago

What the hell is K-BB%?

I just use wins, ERA & WHIP.

Bill James
12 years ago

Wins are meaningless!!

John Elway
12 years ago

Is this meme beating a dead horse?

I say NEEEIIIIGGGHHH!

Ned Shakeshaft
12 years ago

This is useless to me unless I can compare it to xK-BB%.

Alex Anthopoulos
12 years ago

We used to look at this but then Rogers Communications cancelled our analytics budget

J. P. Ricciardi
12 years ago

No they didn’t, we were never given one

Ted Rogers
12 years ago

To be fair, that statue wasn’t cheap.

Rob Ford
12 years ago
Reply to  Ted Rogers

Crack!

Clayton
12 years ago

Any idea on what a league average K-BB% is for some context? Thanks for the new leaderboard!

Scott
12 years ago
Reply to  Clayton

When you click leaders, at the top right there is a link called league. That’ll give you the league average.

stretchfest
12 years ago
Reply to  Scott

thanks Scott, never realized that.

Colin
12 years ago

The problem with K%-BB% is that they aren’t worth the same; one strikeout is less valuable than one walk is harmful.

Tangotiger
12 years ago
Reply to  Colin

Roughly speaking a K and a BB are equivalent. The differential works. Try to find some threads of mine.

novaether
12 years ago
Reply to  Tangotiger

Then why aren’t they weighted equally in FIP?

Ryan Pollack
12 years ago
Reply to  Tangotiger
Jackie T.
12 years ago
Reply to  Colin

Sure, but according to Eno’s research there is no more predictive stat for in-season ERA than this one. That makes it useful.

Charlie HustleMember since 2016
12 years ago
Reply to  Jackie T.

This!

There are many stats that could be derived from Ks and BBs, but K-BB% has been shown to be more predictive for in-season ERA (in some studies).

Compared to K/BB, K-BB% reflects the magnitude of the difference between K% and BB%. For example, take two pitchers with a K/BB ratio of 3. A pitcher with 9 K/9 and 3 BB/9 is a different type of pitcher than a pitcher with 6 K/9 and 2 BB/9.

Ruki Motomiya
12 years ago

This image just reminds me how much sadder the world is with Jose Fernandez out.

everdiso
12 years ago

beautiful.

I’ve been self-calculating this stat for too long.

Guy
12 years ago

Is kwERA next?

Jason B
12 years ago
Reply to  Guy

Kiwi ERA. For New Zealanders only.

joe
12 years ago

Wouldn’t 2K%-3BB% be better (the same weights as in fip)

Jackie T.
12 years ago

Still not able to customize my player pages with it in FG+. Is it not there yet?

pft
12 years ago

What does K-BB% represent?

Charlie HustleMember since 2016
12 years ago
Reply to  pft

If reflects how pitchers dominate the strike zone.

For a nice explanation, go to Dave Cameron’s article from yesterday (5/20) entitled “A Graphic Look at Pitcher Types”.

DBA455
12 years ago

Thank you. That’s all, just – thank you.

This a useful addition, and a clear indication that site management continues to listen to reader feedback on how to improve the site.

I continue to feel that I am getting my money’s worth from FG.

Matt OlsonMember since 2026
12 years ago

When in the “Customize” tab, I try to add “K-BB%” to my custom pitching stats list. But K-BB% is not there. How come?

Matthew Murphy
12 years ago

This is amazing. I’ve been waiting for this day for a long time.

John W.
12 years ago

Love the addition! Hey, I know it must feel like the peasants are at the gate with torches when you add a new stat, and I’d like to add one!! Surprise… The Great Dave Cameron mentioned a while back that wOBA could be added to the pitching stat line, the only access now is sneaking in through splits. Love to see it someday.
Thanks very much.

cass
12 years ago

Thank you.

Will we ever get a version of FIP that matches WAR, though, with infield fly balls counted as strikeouts?

lou
12 years ago

xBABIP would be lovely.

gnomezMember since 2020
12 years ago

Where did tERA go?

sheeks9
11 years ago

Can we get Pitchers RAA?

sheeks9
11 years ago

I dont like positional adjustments, I dont like League adjustments, I dont like replacement value, and because of that, I do not like WAR.

I use Bat, BsR and Fld for position players, and RAR for pitchers, but since the replacement value is added to pitchers it is tough to compare them to position players who I only look at RAA in their Bat, BsR, and Fld scores.

Also, if you could add up Bat, BsR, and Fld and make that one statistic, I would enjoy that as well.