Ten biggest bat speed losers early (apr/may) vs late (aug/sep) 1) Luis Robert Jr. (-3.1 mph) 2) Joey Ortiz 3) Sal Frelick 4) Pete Crow-Armstrong 5) Jake McCarthy 6) Cody Bellinger 7) Max Kepler 8) Jake Meyers 9) Enrique Hernández 10) Rafael Devers (-1.4 mph) - ThreadSky

enosarris.bsky.social • 93 days ago

Ten biggest bat speed losers early (apr/may) vs late (aug/sep)

1) Luis Robert Jr. (-3.1 mph)
2) Joey Ortiz
3) Sal Frelick
4) Pete Crow-Armstrong
5) Jake McCarthy
6) Cody Bellinger
7) Max Kepler
8) Jake Meyers
9) Enrique Hernández
10) Rafael Devers (-1.4 mph)

Comments

arkansasbrett.bsky.social•93 days ago

Luis Robert was hurt and this makes that tangible.

nomoredevil.bsky.social•93 days ago

Where does Issac Paredes fall on the list?

enosarris.bsky.social•93 days ago

"never had any to lose" lol. He actually went up from 67.8 mph to 68.1, so still bad.

nomoredevil.bsky.social•93 days ago

He’s such a weird hitter

mpbmke.com•93 days ago

Oof, but in Brewers

cilantronate.bsky.social•93 days ago

Do you think it has to do with some sort of rookie wall? I mean both Ortiz Frelick had their first full mlb seasons. I hope.

mpbmke.com•93 days ago

Maybe. Sal didn't have that much batspeed to lose to begin with, though.

cilantronate.bsky.social•93 days ago

Was going to use the WBC as a possible cause but that was in 23.

aiyer917.bsky.social•93 days ago

Robert def checked out midseason

jonhegglund.bsky.social•93 days ago

the Cody Bellinger career arc is fascinating (mostly derogatory)

shootthisway.bsky.social•93 days ago

Him and Kris Bryant

brocnessmonster.bsky.social•93 days ago

that’s not an arc it’s a roller coaster

mikepetriello.bsky.social•93 days ago

PCA actually makes sense because I remember him saying he was trying to get under control a little more

most everyone else, ick

enosarris.bsky.social•93 days ago

yeah I saw Cowser on this list too. Burger. Morel. Maybe going from elite to plus plus for more bat control makes sense for some of these guys. Guess you could say that for Robert but 3mph is super big imo.

juliesax.bsky.social•93 days ago

Cowser said he switched to a heavier bat during the season, which gave him better bat control but probably slowed down his swing.

michaelamitchell.bsky.social•93 days ago

This may be too reactionary of me but maybe Robert just kinda, uh, gave up?

mikepetriello.bsky.social•93 days ago

well, working through injury too

shawnfoss.bsky.social•93 days ago

Yeah, he was also much more successful at the plate in Aug/Sept than he was earlier in the season.

Seemed to work for him to slow it down a little, though according to Baseball Savant he was only in the 26th percentile for bat speed for the year, so wasn't all that fast to begin with

br9nn0n.bsky.social•93 days ago

Devers had a shoulder injury so his was easy to understand

chaserate.bsky.social•93 days ago

PCA's inclusion here is weird -- he wasn't up and playing a ton in the first period, and he hit the ball harder and more squarely at the end of the year. Curious to know if this is a weird data artifact or something actually meaningful

justinthegray.bsky.social•92 days ago

How do we use this for decisions going forward? Do we assume the bat speed stays low? Do we assume they were injured and the bat speed can bounce back?

enosarris.bsky.social•92 days ago

I think use it in tandem with the bat speed aging curve I also retweeted. Younger players that had an injury... not as worried about. 30+ year olds? worried about.

patrickbertolino.bsky.social•91 days ago

Have you looked at the first half/second half WRC+ correlation to bat speed? I'd be curious if the decrease in bat speed actually resulted in worse outcomes for these guys.

bigtotoro.bsky.social•93 days ago

Were they hurt or cycling?

zackdanielssr.bsky.social•93 days ago

mostly young guys; injuries?

enosarris.bsky.social•93 days ago

maybe they got tired?

nickell.bsky.social•93 days ago

If we get per plate appearance swings, would love to see what the distribution looks like for the guys getting a ton of playing time versus those that don't -- dog days, etc. Maybe nothing.

enosarris.bsky.social•93 days ago

I can tell you that the median change among qualified guys was +0.1

nickell.bsky.social•93 days ago

Nice, so basically anything widely deviating from that is likely due to different approach relative to contact/power or injury most likely.

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