Baseball for the Thinking Fan

Login | Register | Feedback



All News | Prime News

Old-School Newsstand


Jim Furtado
Founder & Publisher


Park Factors Newsbeat

Friday, April 30, 2021

Introducing Statcast Park Factors

There’s lots in there, so let me pick out a few things. At Great American Ballpark, 2019-2021 there were 375 HR hit. In Reds games away from GABP, there were 293 HR hit. That’s a nominal factor of 375/293 = 1.28 times, or 128 in the index=100 parlance. Now, we apply additional adjustments for the Reds batters and pitchers. While we did limit the look at Reds games at GABP and away from GABP, you can still get disproportionate usage of players. Votto may play all the time at home and away, but Luis Castillo may not. In addition, even if Votto plays all the time home/away, he may not face the same distribution of LHP/RHP. And naturally, we’d base it on a per plate appearance basis. Once we account for all that, the three-year rolling average for GABP HR is 133.

And it’s not just HR. Want to know the toughest place to strikeout? That’s Coors and Kauffman. High elevation parks will do that for you. Want to know the three year rolling park factors for Fenway for all the metrics going back to 2001? That’s there too.

We also show the impact of parks on HR-type of distances. We looked at all batted balls hit at 24 to 32 degrees, launched at 90+ mph. We then standardized them to 28 degrees, 100mph, at 74 degrees F, 500 feet of elevation. We can therefore account for a naive effect of temperature and elevation on each park. In addition, dome/roof parks have a bit better carry, so we adjust for that too. Everything else that is unaccounted for lands in a “environment” bucket, which could be the effect of wind (think Wrigley) or the effect of humidity at that park (over and above temperature and elevation) or simply Random Variation (especially if you are going to look at 2021 with so few games played).

RoyalsRetro (AG#1F) Posted: April 30, 2021 at 10:35 AM | 1 comment(s)
  Beats: park factors



BBTF Partner

Dynasty League Baseball

Support BBTF


Thanks to
Jim Wisinski
for his generous support.

You must be logged in to view your Bookmarks.

Hot Topics

NewsblogFree agent Albert Pujols, Los Angeles Dodgers agree to major-league contract
(52 - 11:12pm, May 17)
Last: Ziggy: social distancing since 1980

NewsblogLos Angeles Angels designate slugger Albert Pujols for assignment
(192 - 11:03pm, May 17)
Last: Ziggy: social distancing since 1980

NewsblogManny Machado completed a dangerous and unnecessary slide, and MLB fans were incensed
(48 - 10:57pm, May 17)
Last: SoSH U at work

NewsblogTAX DAY OMNICHATTER! for May 17, 2021
(33 - 10:46pm, May 17)
Last: AT-AT at bat@AT&T

NewsblogJoe Girardi, Jean Segura have confrontation as Philadelphia Phillies lose to Toronto Blue Jays
(8 - 10:32pm, May 17)
Last: RoyalsRetro (AG#1F)

Sox TherapyTap the Brakes
(25 - 10:28pm, May 17)
Last: Steve Balboni's Personal Trainer

NewsblogPrimer Dugout (and link of the day) 5-17-2021
(72 - 10:25pm, May 17)
Last: Walt Davis

NewsblogNBA 2020 Season kick-off thread
(3226 - 10:16pm, May 17)
Last: DCA

NewsblogThe Detroit Tigers Should Be Better Than This By Now
(7 - 9:15pm, May 17)
Last: Astroenteritis

Newsblog8th? BBTF Central Park Softball Game: 2021?
(135 - 9:13pm, May 17)
Last: villageidiom

Sox TherapyOver and Under
(23 - 9:11pm, May 17)
Last: villageidiom

NewsblogBaseball America [$]: 'It's Awful': Sloppy Play Rampant Across Minors After Unprecedented Layoff
(6 - 8:56pm, May 17)
Last: Lowry Seasoning Salt

NewsblogOT: Wrestling Thread November 2014
(2449 - 6:43pm, May 17)
Last: "bothsidesism" word 57i66135

NewsblogEmpty Stadium Sports Will Be Really Weird
(13079 - 3:55pm, May 17)
Last: The Yankee Clapper

NewsblogPrimer Dugout (and link of the day) 5-10-2021
(14 - 1:52pm, May 17)
Last: Ziggy: social distancing since 1980

Page rendered in 0.9678 seconds
46 querie(s) executed