Team Stats Over/Under & YRFI Run Line Form & Streaks Ballparks Umpires Bullpens

MLB Ballpark Factors

How every park plays, ranked by run factor (1.00 is league average). Tap a park for its full profile: home run and strikeout factors, run scoring by temperature, and the home record.

Run scoring by temperature

How many runs a game produces at each game-time temperature. Temperature is the one weather signal wired into our totals model — warmer air carries the ball — so this is the descriptive history behind it. League-wide, one row per game.

Cold

Below 55°F

8.17

avg total runs

Over (vs line) —

368 games

Mild

55–69°F

8.56

avg total runs

Over (vs line) 55.8%

1,638 games

Warm

70–82°F

8.81

avg total runs

Over (vs line) 46.2%

3,506 games

Hot

83°F+

9.64

avg total runs

Over (vs line) 45.9%

1,251 games

Descriptive history, not a betting edge — over/under is close to market-efficient.

Every park, by run factor

#	Ballpark	Games	Run factor	HR factor
1	Coors Field	219	1.27	1.15
2	Sutter Health Park	135	1.21	1.30
3	Chase Field	223	1.12	0.96
4	Nationals Park	224	1.10	1.03
5	Target Field	222	1.05	0.98
6	Dodger Stadium	178	1.05	1.28
7	Citizens Bank Park	227	1.05	1.13
8	Yankee Stadium	231	1.02	1.20
9	Oriole Park at Camden Yards	226	1.02	1.12
10	Rogers Centre	234	1.02	1.05
11	loanDepot park	224	1.02	0.87
12	Citi Field	224	1.02	1.02
13	Fenway Park	222	1.01	0.86
14	PNC Park	222	1.00	0.82
15	Great American Ball Park	221	1.00	1.12
16	Angel Stadium	222	1.00	1.03
17	George M. Steinbrenner Field	81	0.99	1.11
18	Minute Maid Park	83	0.99	1.11
19	Oakland Coliseum	81	0.97	0.84
20	Daikin Park	140	0.97	1.12
21	Comerica Park	224	0.97	0.97
22	Rate Field	141	0.97	0.97
23	Kauffman Stadium	223	0.97	0.85
24	UNIQLO Field at Dodger Stadium	58	0.96	1.08
25	Truist Park	224	0.96	1.00
26	American Family Field	233	0.96	0.96
27	Wrigley Field	224	0.94	1.03
28	Busch Stadium	227	0.94	0.76
29	Progressive Field	229	0.94	0.93
30	Oracle Park	221	0.94	0.76
31	Petco Park	228	0.92	0.98
32	Tropicana Field	140	0.91	0.98
33	Guaranteed Rate Field	81	0.89	0.89
34	Globe Life Field	221	0.88	0.94
35	T-Mobile Park	230	0.85	0.99

Run factor above 1.00 favors hitters, below favors pitchers. Updated each day from completed games.