Ballpark Factors:
1991 National League1991 American League  
1991 Major Leagues  
National League
| Ballpark Factors by Ballpark |
|
|
Relative Factor (100=avg, higher is better for hitting) |
| City |
Ballpark |
Runs |
OBP |
SLG |
D |
T |
HR |
DP |
| Atlanta | Fulton County Stadium | 118.4 | 107.3 | 108.5 | 102.5 | 99.3 | 122.4 | 114.8 |
| Chicago | Wrigley Field | 107.0 | 100.3 | 103.5 | 101.5 | 74.7 | 129.4 | 100.2 |
| Cincinnati | Riverfront Stadium | 113.4 | 104.3 | 109.8 | 109.8 | 104.0 | 142.0 | 95.0 |
| Houston | Astrodome | 91.0 | 96.6 | 93.8 | 106.9 | 129.1 | 60.0 | 91.1 |
| Los Angeles | Dodger Stadium | 103.6 | 101.3 | 98.2 | 84.3 | 66.0 | 99.5 | 84.6 |
| Montreal | Olympic Stadium | 84.2 | 95.9 | 94.5 | 99.1 | 104.9 | 80.5 | 107.0 |
| New York | Shea Stadium | 105.6 | 103.5 | 102.5 | 98.0 | 113.9 | 97.6 | 84.3 |
| Philadelphia | Veterans Stadium | 103.7 | 102.6 | 101.6 | 101.9 | 98.2 | 96.4 | 105.1 |
| Pittsburgh | Three Rivers Stadium | 91.8 | 96.5 | 96.4 | 99.7 | 107.3 | 90.6 | 117.3 |
| San Diego | Jack Murphy Stadium | 100.1 | 100.0 | 100.3 | 98.9 | 74.8 | 108.9 | 99.7 |
| San Francisco | Candlestick Park | 88.9 | 94.2 | 95.8 | 102.2 | 104.8 | 97.6 | 108.7 |
| St. Louis | Busch Stadium II | 90.2 | 96.9 | 94.3 | 95.1 | 123.1 | 72.6 | 93.1 |