MLB · Run Environments
MLB Park Factors 2026
Ballparks ranked by run environment · season to date
30
Ballparks ranked
Best Ballparks for Runs Today
15 gamesEach park's season scoring rate, moved by today's wind, heat and rain.
How this is scored
Every game starts from its park's season scoring rate: Park +17% means 17% more runs score there than in an average park, measured from this season's real final scores (runs per game at the park vs the same teams on the road). Today's weather then moves it: 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.
The big number is the sum: how much higher or lower than average scoring the conditions point to. 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.
1
Mariners
@
Athletics
Sutter Health Park · 4:05 PM ET
Mariners
@
Athletics
Sutter Health Park · 4:05 PM ET
+40%
runs vs avg
Park+40%
Forecast pending
2
Angels
@
Nationals
Nationals Park · 1:35 PM ET
Angels
@
Nationals
Nationals Park · 1:35 PM ET
+19%
runs vs avg
Park+16%
83°F+3.1%
Away starter · faces Washington Nationals batsGrayson Rodriguez 6.28 ERA · hittable8.3 K/9 · 1.57 WHIP · HR-prone: about 1 every 25 battersBullpen behind him: 3.77 ERA · average HR rate: about 1 every 38 batters
Home starter · faces Los Angeles Angels batsRiley Cornelio 5.26 ERA · hittable9.5 K/9 · 1.60 WHIP · keeps it in the park: about 1 HR every 56 battersBullpen behind him: 4.59 ERA · average HR rate: about 1 every 35 batters
3
Mets
@
Yankees
Yankee Stadium · 1:35 PM ET
Mets
@
Yankees
Yankee Stadium · 1:35 PM ET
+18%
runs vs avg
Park+16%
78°F+2.1%
4
Phillies
@
Braves
Truist Park · 1:35 PM ET
Phillies
@
Braves
Truist Park · 1:35 PM ET
+13%
runs vs avg
Park+6%
Wind6 mph+2.9%
87°F+4.4%
Away starter · faces Atlanta Braves batsAndrew Painter 5.71 ERA · hittable7.9 K/9 · 1.40 WHIP · HR-prone: about 1 every 25 battersBullpen behind him: 3.73 ERA · average HR rate: about 1 every 33 batters
Home starter · faces Philadelphia Phillies batsGrant Holmes 3.46 ERA · solid7.2 K/9 · 1.29 WHIP · average HR rate: about 1 every 31 battersBullpen behind him: 3.11 ERA · keeps it in the park: about 1 HR every 43 batters
5
Royals
@
Red Sox
Fenway Park · 3:05 PM ET
Royals
@
Red Sox
Fenway Park · 3:05 PM ET
+8%
runs vs avg
Park+8%
Away starter · faces Boston Red Sox batsNoah Cameron 3.93 ERA · solid8.1 K/9 · 1.20 WHIP · keeps it in the park: about 1 HR every 43 battersBullpen behind him: 4.38 ERA · average HR rate: about 1 every 35 batters
Home starter · faces Kansas City Royals batsPayton Tolle 3.15 ERA · shove job10.5 K/9 · 1.08 WHIP · average HR rate: about 1 every 40 battersBullpen behind him: 3.35 ERA · keeps it in the park: about 1 HR every 44 batters
6
Astros
@
Rays
Tropicana Field · 1:40 PM ET
Astros
@
Rays
Tropicana Field · 1:40 PM ET
+1%
runs vs avg
Park+1%
Dome
Away starter · faces Tampa Bay Rays batsHayden Wesneski 3.35 ERA · solid7.1 K/9 · 1.03 WHIP · keeps it in the park: about 1 HR every 67 battersBullpen behind him: 4.21 ERA · average HR rate: about 1 every 33 batters
Home starter · faces Houston Astros batsFreddy Peralta 4.35 ERA · league average6.6 K/9 · 1.02 WHIP · average HR rate: about 1 every 28 battersBullpen behind him: 3.51 ERA · average HR rate: about 1 every 33 batters
7
Rangers
@
Diamondbacks
Chase Field · 4:10 PM ET
Rangers
@
Diamondbacks
Chase Field · 4:10 PM ET
0%
runs vs avg
Parkavg
Dome
8
Orioles
@
Blue Jays
Rogers Centre · 1:37 PM ET
Orioles
@
Blue Jays
Rogers Centre · 1:37 PM ET
-1%
runs vs avg
Park-1%
Dome
9
Pirates
@
Cubs
Wrigley Field · 2:20 PM ET
Pirates
@
Cubs
Wrigley Field · 2:20 PM ET
-2%
runs vs avg
Park+2%
Wind7 mph-3.6%
Away starter · faces Chicago Cubs batsBubba Chandler 4.25 ERA · league average8.2 K/9 · 1.34 WHIP · keeps it in the park: about 1 HR every 48 battersBullpen behind him: 3.80 ERA · keeps it in the park: about 1 HR every 43 batters
Home starter · faces Pittsburgh Pirates batsMatthew Boyd 4.03 ERA · league average7.1 K/9 · 1.22 WHIP · average HR rate: about 1 every 31 battersBullpen behind him: 4.22 ERA · HR-prone: about 1 every 26 batters
10
Rockies
@
Tigers
Comerica Park · 12:10 PM ET
Rockies
@
Tigers
Comerica Park · 12:10 PM ET
-2%
runs vs avg
Park-8%
Wind12 mph+6%
11
Reds
@
Brewers
American Family Field · 2:10 PM ET
Reds
@
Brewers
American Family Field · 2:10 PM ET
-2%
runs vs avg
Park-2%
Retractable
Away starter · faces Milwaukee Brewers batsBrandon Williamson 5.97 ERA · hittable6.7 K/9 · 1.67 WHIP · HR-prone: about 1 every 26 battersBullpen behind him: 4.58 ERA · average HR rate: about 1 every 28 batters
Home starter · faces Cincinnati Reds batsRobert Gasser 4.43 ERA · league average8.6 K/9 · 1.28 WHIP · average HR rate: about 1 every 28 battersBullpen behind him: 3.45 ERA · average HR rate: about 1 every 37 batters
12
Guardians
@
Twins
Target Field · 2:10 PM ET
Guardians
@
Twins
Target Field · 2:10 PM ET
-5%
runs vs avg
Park-9%
Wind9 mph+4.5%
Away starter · faces Minnesota Twins batsTanner Bibee 4.22 ERA · league average7.0 K/9 · 1.20 WHIP · HR-prone: about 1 every 27 battersBullpen behind him: 3.64 ERA · average HR rate: about 1 every 36 batters
Home starter · faces Cleveland Guardians batsJoe Ryan 4.10 ERA · league average10.1 K/9 · 1.14 WHIP · average HR rate: about 1 every 31 battersBullpen behind him: 4.36 ERA · average HR rate: about 1 every 37 batters
13
Dodgers
@
Marlins
LoanDepot Park · 1:40 PM ET
Dodgers
@
Marlins
LoanDepot Park · 1:40 PM ET
-9%
runs vs avg
Park-9%
Dome
Away starter · faces Miami Marlins batsEmmet Sheehan 5.08 ERA · hittable10.5 K/9 · 1.26 WHIP · HR-prone: about 1 every 21 battersBullpen behind him: 3.35 ERA · average HR rate: about 1 every 40 batters
Home starter · faces Los Angeles Dodgers batsEury Perez 3.94 ERA · solid9.7 K/9 · 1.24 WHIP · average HR rate: about 1 every 36 battersBullpen behind him: 4.24 ERA · average HR rate: about 1 every 37 batters
14
Padres
@
Giants
Oracle Park · 7:20 PM ET
Padres
@
Giants
Oracle Park · 7:20 PM ET
-15%
runs vs avg · O/U 7.5
Park-5%
Wind20 mph-9.9%
15
White Sox
@
Cardinals
Busch Stadium · 2:15 PM ET
White Sox
@
Cardinals
Busch Stadium · 2:15 PM ET
-17%
runs vs avg
Park-16%
Wind9 mph-4.3%
85°F+3.8%
Away starter · faces St. Louis Cardinals batsSean Burke 3.58 ERA · solid9.8 K/9 · 1.20 WHIP · average HR rate: about 1 every 37 battersBullpen behind him: 4.08 ERA · average HR rate: about 1 every 37 batters
Home starter · faces Chicago White Sox batsMichael McGreevy 3.92 ERA · solid6.2 K/9 · 1.25 WHIP · average HR rate: about 1 every 33 battersBullpen behind him: 4.45 ERA · average HR rate: about 1 every 35 batters
30
Parks
Sutter Health Park (140)
Most Hitter-Friendly
Petco Park (83)
Most Pitcher-Friendly
9 / 12
Hitter / Pitcher Parks
| Rank | Ballpark | PF | Runs/G Home | Runs/G Road | Sample | |
|---|---|---|---|---|---|---|
| 1 |
Sutter Health Park
ATH
|
140 | 11.8 | 8.4 | 74 / 75 | |
| 2 |
Citizens Bank Park
PHI
|
118 | 9.5 | 8.0 | 75 / 74 | |
| 3 |
PNC Park
PIT
|
118 | 10.2 | 8.7 | 72 / 77 | |
| 4 |
Nationals Park
WAS
|
116 | 11.0 | 9.4 | 75 / 75 | |
| 5 |
Yankee Stadium
NYY
|
116 | 8.9 | 7.7 | 73 / 75 | |
| 6 |
Coors Field
COL
|
116 | 11.3 | 9.7 | 71 / 77 | |
| 7 |
Kauffman Stadium
KC
|
112 | 9.6 | 8.6 | 75 / 74 | |
| 8 |
Fenway Park
BOS
|
108 | 8.6 | 7.9 | 74 / 75 | |
| 9 |
Truist Park
ATL
|
106 | 8.7 | 8.2 | 77 / 72 | |
| 10 |
Progressive Field
CLE
|
103 | 8.4 | 8.1 | 75 / 74 | |
| 11 |
Wrigley Field
CHC
|
102 | 9.9 | 9.6 | 74 / 75 | |
| 12 |
Tropicana Field
TB
|
101 | 8.7 | 8.6 | 74 / 74 | |
| 13 |
Chase Field
ARI
|
100 | 8.8 | 8.8 | 74 / 75 | |
| 14 |
Rogers Centre
TOR
|
99 | 8.3 | 8.3 | 74 / 75 | |
| 15 |
American Family Field
MIL
|
98 | 9.0 | 9.2 | 77 / 72 | |
| 16 |
Citi Field
NYM
|
96 | 8.7 | 9.1 | 74 / 74 | |
| 17 |
Dodger Stadium
LAD
|
96 | 8.6 | 9.0 | 75 / 73 | |
| 18 |
Rate Field
CWS
|
96 | 9.0 | 9.3 | 74 / 74 | |
| 19 |
Oracle Park
SF
|
95 | 8.7 | 9.2 | 74 / 75 | |
| 20 |
Daikin Park
HOU
|
95 | 9.0 | 9.4 | 75 / 74 | |
| 21 |
Comerica Park
DET
|
92 | 8.1 | 8.8 | 74 / 74 | |
| 22 |
Oriole Park at Camden Yards
BAL
|
91 | 8.8 | 9.6 | 75 / 74 | |
| 23 |
LoanDepot Park
MIA
|
91 | 8.4 | 9.3 | 77 / 72 | |
| 24 |
Globe Life Field
TEX
|
91 | 8.2 | 9.0 | 72 / 77 | |
| 25 |
Target Field
MIN
|
91 | 9.1 | 10.0 | 74 / 74 | |
| 26 |
Great American Ball Park
CIN
|
90 | 8.9 | 9.9 | 74 / 74 | |
| 27 |
Angel Stadium
LAA
|
85 | 7.9 | 9.3 | 74 / 74 | |
| 28 |
Busch Stadium
STL
|
84 | 8.4 | 10.0 | 74 / 75 | |
| 29 |
T-Mobile Park
SEA
|
84 | 7.7 | 9.3 | 75 / 74 | |
| 30 |
Petco Park
SD
|
83 | 7.7 | 9.2 | 75 / 73 |
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.