Today is day 161 of the 1991 season
1991-09-18 MLB Standings
NL East 1991-09-18
| Tm | W | L | BAT | PITCH | UR | dPE | |
| PIT | 88 | 58 | 63.0 | 68.7 | -8.5 | 4.1 | |
| SLN | 76 | 69 | -43.4 | 38.8 | 1.1 | 7.7 | |
| CHN | 71 | 75 | 5.4 | -32.3 | -15.5 | 4.9 | |
| NYN | 70 | 76 | -45.6 | 49.7 | -12.5 | -4.2 | |
| PHI | 69 | 77 | -56.1 | 4.7 | 11.5 | 0.4 | |
| WAS | 64 | 81 | -108.3 | 48.8 | -2.9 | -3.9 | |
NL West 1991-09-18
| Tm | W | L | BAT | PITCH | UR | dPE | |
| LAN | 84 | 63 | -21.3 | 113.6 | 1.0 | 1.4 | |
| ATL | 83 | 63 | 51.0 | 56.7 | -12.5 | 0.0 | |
| SDN | 74 | 73 | -72.8 | 46.6 | 0.0 | 6.5 | |
| CIN | 70 | 76 | 1.4 | 17.7 | -9.5 | -8.0 | |
| SFN | 68 | 78 | -33.6 | -24.3 | 19.5 | -1.9 | |
| HOU | 59 | 87 | -86.6 | -18.3 | -7.5 | -4.4 | |
AL East 1991-09-18
| Tm | W | L | BAT | PITCH | UR | dPE | |
| TOR | 82 | 65 | -3.6 | 47.6 | 12.0 | 5.2 | |
| BOS | 79 | 67 | 30.0 | 2.7 | 1.5 | 4.8 | |
| DET | 75 | 70 | 100.7 | -89.2 | 5.1 | 1.5 | |
| MIL | 69 | 75 | 48.8 | -40.1 | -6.3 | -6.5 | |
| NYA | 62 | 83 | -27.4 | -68.2 | -3.9 | -0.1 | |
| BAL | 61 | 85 | 5.4 | -103.3 | 14.5 | -6.5 | |
| CLE | 49 | 95 | -103.2 | -38.1 | -14.3 | -13.3 | |
AL West 1991-09-18
| Tm | W | L | BAT | PITCH | UR | dPE | |
| MIN | 87 | 60 | 70.2 | 32.6 | 8.0 | 3.7 | |
| CHA | 81 | 66 | 66.2 | 22.6 | 8.0 | -5.3 | |
| TEX | 76 | 67 | 121.6 | -77.1 | -12.7 | 2.3 | |
| OAK | 76 | 70 | 36.4 | -94.3 | 22.5 | 13.4 | |
| KCA | 74 | 71 | 32.1 | -4.2 | -19.9 | 1.3 | |
| SEA | 74 | 71 | 5.1 | 11.8 | 6.1 | -1.8 | |
| ANA | 72 | 72 | -38.2 | 30.9 | 14.7 | -1.6 | |