MLB / Stadium Analytics

MLB Park Factors: All 30 Ballparks

Home run, runs and wOBA park factors for every MLB ballpark, split by batter handedness. Index 100 is league average, above 100 favours the hitter and below 100 favours the pitcher. Ranked by home run factor against right-handed hitters.

This is the reference version. For the interactive tool with every stat column, season toggles and today's weather layered on top, open the live MLB Park Factors tool.

Rank	Ballpark	Team	HR vs RHB	HR vs LHB	Runs	wOBA
1	Tropicana Field	Tampa Bay Rays	135	91	112	106
2	Sutter Health Park	Athletics	130	122	132	115
3	Nationals Park	Washington Nationals	125	128	114	107
4	Daikin Park	Houston Astros	117	101	100	100
5	Kauffman Stadium	Kansas City Royals	114	96	112	106
6	Wrigley Field	Chicago Cubs	113	130	108	104
7	UNIQLO Field at Dodger Stadium	Los Angeles Dodgers	110	106	102	101
8	Comerica Park	Detroit Tigers	108	72	98	99
9	Citizens Bank Park	Philadelphia Phillies	107	113	100	100
10	Yankee Stadium	New York Yankees	105	136	96	98
11	Rate Field	Chicago White Sox	104	101	108	104
12	Oriole Park at Camden Yards	Baltimore Orioles	104	112	100	100
13	Great American Ball Park	Cincinnati Reds	104	114	94	97
14	American Family Field	Milwaukee Brewers	102	89	94	97
15	Coors Field	Colorado Rockies	101	110	110	105
16	Truist Park	Atlanta Braves	101	110	102	101
17	Globe Life Field	Texas Rangers	101	105	94	97
18	Petco Park	San Diego Padres	101	76	98	99
19	Rogers Centre	Toronto Blue Jays	96	99	98	99
20	Chase Field	Arizona Diamondbacks	95	89	102	101
21	T-Mobile Park	Seattle Mariners	94	122	81	90
22	Citi Field	New York Mets	93	95	86	93
23	Target Field	Minnesota Twins	92	72	108	104
24	Fenway Park	Boston Red Sox	85	92	104	102
25	Oracle Park	San Francisco Giants	83	71	86	93
26	Progressive Field	Cleveland Guardians	82	91	102	101
27	Busch Stadium	St. Louis Cardinals	77	62	98	99
28	Angel Stadium	Los Angeles Angels	73	70	77	88
29	loanDepot park	Miami Marlins	66	86	86	93
30	PNC Park	Pittsburgh Pirates	66	110	96	98

Index 100 is league average. Above 100 favours the hitter, below 100 favours the pitcher. Ranked by home run factor against right-handed hitters. Data through 2026-09-08.

What a park factor measures

A park factor is a stadium's effect on an outcome compared with the league average, with 100 set as neutral. A home run factor of 115 means that ballpark produced 15 percent more home runs than an average park would have, given the same hitters and pitchers. The number is computed over several seasons of batted ball data, so it moves slowly and is stable enough to use as a baseline rather than a daily input.

The drivers are physical: outfield distances, wall heights, the amount of foul territory, elevation and typical air density. Coors Field sits at 5,200 feet, where thinner air lets the ball carry further and the large outfield gaps turn that carry into extra base hits. Oracle Park has a deep right centre field that swallows fly balls a shorter park would give away.

Why the righty and lefty columns differ

Outfields are rarely symmetric, so one stadium can help right-handed power and suppress left-handed power at the same time. A short porch in right field helps left-handed pull hitters. The Green Monster in left field at Fenway Park turns fly balls into doubles rather than home runs. That is why a single combined park factor is misleading for a lineup decision, and why this table publishes both splits.

When you are deciding on one hitter, read the column that matches which side of the plate he stands on, not the average of the two.

How to use park factors for DFS and betting

Treat park factors as a filter on your player pool rather than a projection. Prefer hitters in favourable venues and be more careful with hitters in suppressing venues, all else equal. For pitchers the logic reverses: a strikeout arm in a bottom-five park carries both a higher floor and a lower home run risk.

Same day weather sits on top of this baseline. A hitter friendly park with a strong wind blowing in can play neutral or worse for one night. Check wind direction today before you lock a lineup.

Every ballpark

Frequently asked questions

What is an MLB park factor?

A stadium's effect on an outcome relative to the league average, with 100 as neutral. A home run factor of 115 means that park produced 15 percent more home runs than an average park would have with the same hitters and pitchers.

Which MLB ballpark is the most hitter friendly?

The park at the top of this table has the highest home run factor against right-handed hitters. The answer differs by handedness and by season, so check both splits rather than relying on one combined number.

Which MLB ballpark is the most pitcher friendly?

The park at the bottom of this table. Deep outfield distances, tall walls, large foul territory and low elevation all suppress offence.

Why do the righty and lefty numbers differ so much?

Because outfield dimensions are not symmetric. A short right field helps left-handed pull hitters while doing nothing for a right-handed hitter, so the same stadium can rank near the top for one side and near the bottom for the other.

How often do park factors change?

Slowly. They are computed over multiple seasons, so a single season figure early in the year is noisy. The multi season number is the stable one.

Do park factors account for weather?

No. They are the long run baseline for the stadium itself. Wind, temperature and humidity are same day effects that sit on top, which is what the wind direction and weather tools cover.