MLB HR park factors
HR park factor (PF) measures how much more or less likely a home run is at that park vs league average. 100 = neutral, 118 = 18% more HRs (Coors), 88 = 12% fewer (Oracle). Our composite is a 3-year handedness-neutral Statcast park factor, with separate values for LHB and RHB.
All 30 MLB parks ranked
HR factor of 100 is league average. The full range across MLB right now is roughly 88 (Oracle Park) to 118 (Coors Field) — that's a 35% spread, easily the biggest situational variable in HR projections.
| Park | HR | LHB | RHB |
|---|---|---|---|
| Coors Field | 118 | 116 | 120 |
| Great American Ball Park | 116 | 115 | 117 |
| Yankee Stadium | 112 | 122 | 105 |
| Sutter Health Park | 112 | 108 | 115 |
| Citizens Bank Park | 110 | 112 | 108 |
| Guaranteed Rate Field | 107 | 108 | 106 |
| Rate Field | 107 | 108 | 106 |
| American Family Field | 105 | 106 | 104 |
| Rogers Centre | 105 | 106 | 104 |
| Dodger Stadium | 104 | 105 | 103 |
| Daikin Park | 103 | 104 | 102 |
| Minute Maid Park | 103 | 104 | 102 |
| Nationals Park | 102 | 103 | 101 |
| Truist Park | 101 | 102 | 100 |
| Angel Stadium | 100 | 100 | 100 |
| Chase Field | 100 | 101 | 99 |
| Globe Life Field | 99 | 100 | 98 |
| Target Field | 99 | 100 | 98 |
| Wrigley Field | 99 | 99 | 99 |
| Oriole Park at Camden Yards | 98 | 100 | 96 |
| Comerica Park | 97 | 96 | 98 |
| Progressive Field | 96 | 95 | 97 |
| Citi Field | 96 | 95 | 97 |
| Tropicana Field | 95 | 92 | 97 |
| Busch Stadium | 95 | 94 | 96 |
| PNC Park | 93 | 92 | 94 |
| T-Mobile Park | 93 | 92 | 94 |
| PETCO Park | 92 | 91 | 93 |
| Petco Park | 92 | 91 | 93 |
| Kauffman Stadium | 92 | 91 | 93 |
| loanDepot park | 90 | 89 | 91 |
| Oakland Coliseum | 90 | 89 | 91 |
| Oracle Park | 88 | 86 | 90 |
Why park factor varies by handedness
Yankee Stadium's short porch in right field makes it a 122 LHB park but only 105 RHB. Same stadium, completely different HR environment depending on which side of the plate the hitter swings from. Same effect at Citizens Bank Park (LHB friendly), Citi Field (deeper to RF), etc.
Frequently asked
What is HR park factor?
A multiplier measuring how much more or less likely a home run is at a given park vs league average. 100 = neutral. 110 means 10% more HRs hit there than average. Park factors are calculated over 3 years of data to smooth single-season noise.
Why are some park factors so different for LHB vs RHB?
Ballparks have asymmetric outfield dimensions and prevailing winds. Yankee Stadium has a 314-foot right field porch (LHB heaven) but a 408-foot center and 314 left (RHB neutral). Citizens Bank Park has a closer RF wall (LHB advantage). These structural differences create handedness-specific HR multipliers that can differ by 15+ points.
Do park factors update?
We update them annually using the most recent 3-year window. Major renovations (e.g., new outfield dimensions) trigger immediate updates. Weather and altitude effects are separate factors not baked into PF.
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