MLB · Run Environments
MLB Park Factors 2026
Ballparks ranked by run environment · season to date
30
Ballparks ranked
Best Ballparks for Runs Today
10 games, ranked by how run-friendly the park and today's weather areHow to read this: every game starts from its park's season scoring rate (+17% park means 17% more runs score there than in an average park), then today's weather moves it: heat and wind blowing out add runs, wind blowing in and rain take them away. The big number is the sum: how much higher or lower than average scoring the conditions point to.
1
Minnesota Twins
at
Athletics
Sutter Health Park · 9:40 PM ET
Minnesota Twins
at
Athletics
Sutter Health Park · 9:40 PM ET
+47%
runs vs avg
Park+47%
SkyForecast pending
Away starter · faces Athletics batsBailey Ober 4.62 ERA · hittable6.2 K/9 · 1.25 WHIP · HR-prone: about 1 every 26 battersBullpen behind him: 4.26 ERA · average HR rate: about 1 every 40 batters
Home starter · faces Minnesota Twins batsJack Perkins 6.96 ERA · hittable10.3 K/9 · 1.48 WHIP · HR-prone: about 1 every 23 battersBullpen behind him: 5.31 ERA · HR-prone: about 1 every 26 batters
2
Colorado Rockies
at
Washington Nationals
Nationals Park · 6:45 PM ET
Colorado Rockies
at
Washington Nationals
Nationals Park · 6:45 PM ET
+18%
runs vs avg
Park+18%
SkyForecast pending
Away starter · faces Washington Nationals batsTomoyuki Sugano 4.70 ERA · hittable5.2 K/9 · 1.26 WHIP · HR-prone: about 1 every 20 battersBullpen behind him: 5.69 ERA · HR-prone: about 1 every 27 batters
Home starter · faces Colorado Rockies batsJackson Kent 9.39 ERA · hittable10.6 K/9 · 2.48 WHIP · average HR rate: about 1 every 31 battersBullpen behind him: 4.49 ERA · average HR rate: about 1 every 35 batters
3
Chicago Cubs
at
Arizona Diamondbacks
Chase Field · 9:40 PM ET
Chicago Cubs
at
Arizona Diamondbacks
Chase Field · 9:40 PM ET
+3%
runs vs avg · O/U 8.5
Park+3%
RoofDome, weather-neutral
Away starter · faces Arizona Diamondbacks batsShota Imanaga 3.83 ERA · solid8.8 K/9 · 1.09 WHIP · HR-prone: about 1 every 21 battersBullpen behind him: 4.05 ERA · average HR rate: about 1 every 29 batters
Home starter · faces Chicago Cubs batsMitch Bratt 4.17 ERA · league average6.1 K/9 · 1.47 WHIP · average HR rate: about 1 every 31 battersBullpen behind him: 3.52 ERA · average HR rate: about 1 every 37 batters
4
Tampa Bay Rays
at
Detroit Tigers
Comerica Park · 6:40 PM ET
Tampa Bay Rays
at
Detroit Tigers
Comerica Park · 6:40 PM ET
-1%
runs vs avg · O/U 8.5
Park-1%
SkyForecast pending
Away starter · faces Detroit Tigers batsNick Martinez 3.05 ERA · shove job5.3 K/9 · 1.14 WHIP · average HR rate: about 1 every 36 battersBullpen behind him: 3.81 ERA · average HR rate: about 1 every 30 batters
Home starter · faces Tampa Bay Rays batsJacob Waguespack 1.95 ERA · shove job5.2 K/9 · 0.83 WHIP · HR-prone: about 1 every 23 battersBullpen behind him: 3.62 ERA · average HR rate: about 1 every 35 batters
5
Cincinnati Reds
at
San Francisco Giants
Oracle Park · 9:45 PM ET
Cincinnati Reds
at
San Francisco Giants
Oracle Park · 9:45 PM ET
-4%
runs vs avg · O/U 8.5
Park-4%
SkyForecast pending
Away starter · faces San Francisco Giants batsAndrew Abbott 4.00 ERA · solid7.0 K/9 · 1.39 WHIP · average HR rate: about 1 every 33 battersBullpen behind him: 4.19 ERA · average HR rate: about 1 every 30 batters
Home starter · faces Cincinnati Reds batsMatt Wilkinson 0.00 ERA · shove job0.0 K/9 · 0.50 WHIP · no HR rate on fileBullpen behind him: 4.31 ERA · keeps it in the park: about 1 HR every 47 batters
6
Texas Rangers
at
Chicago White Sox
Rate Field · 7:40 PM ET
Texas Rangers
at
Chicago White Sox
Rate Field · 7:40 PM ET
-7%
runs vs avg
Park-7%
SkyForecast pending
Away starter · faces Chicago White Sox batsCal Quantrill 3.13 ERA · shove job6.3 K/9 · 1.15 WHIP · average HR rate: about 1 every 37 battersBullpen behind him: 4.20 ERA · average HR rate: about 1 every 35 batters
Home starter · faces Texas Rangers batsErick Fedde 4.33 ERA · league average6.5 K/9 · 1.40 WHIP · HR-prone: about 1 every 22 battersBullpen behind him: 3.88 ERA · average HR rate: about 1 every 39 batters
7
Boston Red Sox
at
Miami Marlins
LoanDepot Park · 6:40 PM ET
Boston Red Sox
at
Miami Marlins
LoanDepot Park · 6:40 PM ET
-13%
runs vs avg
Park-13%
RoofDome, weather-neutral
Away starter · faces Miami Marlins batsJake Bennett 3.46 ERA · solid6.8 K/9 · 1.07 WHIP · keeps it in the park: about 1 HR every 59 battersBullpen behind him: 3.23 ERA · keeps it in the park: about 1 HR every 43 batters
Home starter · faces Boston Red Sox batsJanson Junk 4.37 ERA · league average6.4 K/9 · 1.36 WHIP · average HR rate: about 1 every 33 battersBullpen behind him: 3.92 ERA · average HR rate: about 1 every 38 batters
8
Pittsburgh Pirates
at
San Diego Padres
Petco Park · 9:40 PM ET
Pittsburgh Pirates
at
San Diego Padres
Petco Park · 9:40 PM ET
-13%
runs vs avg · O/U 8.5
Park-13%
SkyForecast pending
Away starter · faces San Diego Padres batsCarmen Mlodzinski 4.03 ERA · league average7.1 K/9 · 1.45 WHIP · keeps it in the park: about 1 HR every 50 battersBullpen behind him: 3.97 ERA · average HR rate: about 1 every 40 batters
Home starter · faces Pittsburgh Pirates batsWalker Buehler 4.79 ERA · hittable7.8 K/9 · 1.39 WHIP · average HR rate: about 1 every 37 battersBullpen behind him: 3.65 ERA · average HR rate: about 1 every 40 batters
9
Philadelphia Phillies
at
Seattle Mariners
T-Mobile Park · 9:40 PM ET
Philadelphia Phillies
at
Seattle Mariners
T-Mobile Park · 9:40 PM ET
-16%
runs vs avg · O/U 7.5
Park-16%
RoofRetractable roof, weather-neutral
Away starter · faces Seattle Mariners batsCristopher Sanchez 2.56 ERA · shove job10.4 K/9 · 1.22 WHIP · keeps it in the park: about 1 HR every 53 battersBullpen behind him: 4.18 ERA · average HR rate: about 1 every 31 batters
Home starter · faces Philadelphia Phillies batsBryce Miller 3.71 ERA · solid8.7 K/9 · 1.04 WHIP · HR-prone: about 1 every 26 battersBullpen behind him: 3.84 ERA · average HR rate: about 1 every 33 batters
10
Cleveland Guardians
at
Los Angeles Angels
Angel Stadium · 9:38 PM ET
Cleveland Guardians
at
Los Angeles Angels
Angel Stadium · 9:38 PM ET
-19%
runs vs avg · O/U 7.5
Park-19%
SkyForecast pending
Away starter · faces Los Angeles Angels batsFoster Griffin 4.20 ERA · league average9.0 K/9 · 1.40 WHIP · HR-prone: about 1 every 16 battersBullpen behind him: 3.41 ERA · average HR rate: about 1 every 35 batters
Home starter · faces Cleveland Guardians batsReid Detmers 3.62 ERA · solid10.4 K/9 · 1.06 WHIP · average HR rate: about 1 every 37 battersBullpen behind him: 4.11 ERA · average HR rate: about 1 every 33 batters
Park percentages come from this season's real final scores (runs per game at the park vs the same teams on the road). Weather adjustments: wind aligned with the park's orientation (up to ±10), temperature vs a 70°F baseline, and a rain penalty when precipitation is forecast. Domes and closed roofs are weather-neutral. O/U is the sportsbook total for the game, as a market reality check. Pitcher and bullpen numbers are season stats from the props feed; HR rates are per batter faced.
30
Parks
Sutter Health Park (147)
Most Hitter-Friendly
Angel Stadium (81)
Most Pitcher-Friendly
9 / 11
Hitter / Pitcher Parks
| Rank | Ballpark | PF | Runs/G Home | Runs/G Road | Sample | |
|---|---|---|---|---|---|---|
| 1 |
Sutter Health Park
ATH
|
147 | 12.1 | 8.2 | 63 / 67 | |
| 2 |
Citizens Bank Park
PHI
|
118 | 9.6 | 8.2 | 67 / 63 | |
| 3 |
Nationals Park
WAS
|
118 | 11.1 | 9.5 | 63 / 68 | |
| 4 |
Coors Field
COL
|
116 | 11.3 | 9.8 | 64 / 65 | |
| 5 |
PNC Park
PIT
|
114 | 10.4 | 9.1 | 66 / 65 | |
| 6 |
Yankee Stadium
NYY
|
113 | 8.7 | 7.7 | 60 / 69 | |
| 7 |
Kauffman Stadium
KC
|
110 | 9.6 | 8.7 | 65 / 66 | |
| 8 |
Truist Park
ATL
|
107 | 8.8 | 8.3 | 65 / 65 | |
| 9 |
Progressive Field
CLE
|
106 | 8.4 | 7.9 | 65 / 65 | |
| 10 |
Fenway Park
BOS
|
104 | 8.5 | 8.1 | 65 / 64 | |
| 11 |
Chase Field
ARI
|
103 | 9.2 | 8.9 | 65 / 65 | |
| 12 |
Citi Field
NYM
|
100 | 8.7 | 8.7 | 65 / 65 | |
| 13 |
American Family Field
MIL
|
100 | 8.7 | 8.7 | 68 / 62 | |
| 14 |
Comerica Park
DET
|
99 | 8.4 | 8.4 | 63 / 66 | |
| 15 |
Rogers Centre
TOR
|
98 | 8.2 | 8.4 | 66 / 65 | |
| 16 |
Tropicana Field
TB
|
98 | 8.6 | 8.8 | 66 / 63 | |
| 17 |
Wrigley Field
CHC
|
97 | 9.3 | 9.6 | 65 / 65 | |
| 18 |
Daikin Park
HOU
|
97 | 9.3 | 9.6 | 67 / 63 | |
| 19 |
Oracle Park
SF
|
96 | 8.5 | 8.8 | 62 / 67 | |
| 20 |
Great American Ball Park
CIN
|
94 | 8.6 | 9.2 | 68 / 62 | |
| 21 |
Oriole Park at Camden Yards
BAL
|
93 | 8.9 | 9.6 | 67 / 63 | |
| 22 |
Rate Field
CWS
|
93 | 8.9 | 9.6 | 64 / 65 | |
| 23 |
Globe Life Field
TEX
|
91 | 7.9 | 8.7 | 64 / 66 | |
| 24 |
Dodger Stadium
LAD
|
90 | 8.4 | 9.3 | 65 / 65 | |
| 25 |
Target Field
MIN
|
88 | 9.0 | 10.2 | 66 / 64 | |
| 26 |
Petco Park
SD
|
87 | 7.9 | 9.1 | 65 / 65 | |
| 27 |
LoanDepot Park
MIA
|
87 | 8.0 | 9.2 | 65 / 65 | |
| 28 |
Busch Stadium
STL
|
85 | 8.1 | 9.6 | 66 / 65 | |
| 29 |
T-Mobile Park
SEA
|
84 | 7.5 | 8.9 | 64 / 66 | |
| 30 |
Angel Stadium
LAA
|
81 | 7.8 | 9.7 | 65 / 65 |
How This Is Calculated
Basic runs park factor: total runs per game in a team's home games divided by total runs per game in its road games, x100. 100 is neutral. Season-to-date, all completed games. It's a single-season read, so use it directionally: a park near 100 is roughly neutral, well above favors hitters, well below favors pitchers. The runs-per-game figures are rounded for display; the factor itself is computed from unrounded season totals, so it can differ by about a point.