| 98-64 | Lost NLCS |
| Record | Outcome |
The Pittsburgh Pirates finished the regular season with a 98-64 record. They went 52-32 at home and 46-32 on the road. Including the postseason, the Pittsburgh Pirates went 101-68. Their final game was a loss in the NL Championship Series to the Atlanta Braves.
The 1991 Pittsburgh Pirates played in the East Division of the National League.
During the regular season, the 1991 Pittsburgh Pirates went 58-32 against their NL East opponents.
The Pirates won the NL East in the 1991 season with a 98-64 record. The Cardinals finished 14 games back with a 84-78 record. The Cubs finished 20 games back with a 77-83 record. The Phillies finished 20 games back with a 78-84 record. The Mets finished 20.5 games back with a 77-84 record. The Expos finished 26.5 games back with a 71-90 record.
| Opponent | Record | Win Percentage % | Run Differential |
|---|---|---|---|
| Montreal Expos | 12-6 | 66.7% | +24 |
| New York Mets | 12-6 | 66.7% | +23 |
| Philadelphia Phillies | 12-6 | 66.7% | +21 |
| Chicago Cubs | 11-7 | 61.1% | +18 |
| St. Louis Cardinals | 11-7 | 61.1% | +16 |
Among qualifying months, the 1991 Pittsburgh Pirates had their best month in May, when they went 17-8 and had a 68% win percentage. Their worst month was June, when they went 15-12 and had a 55.6% win percentage.
| Month | Record | Win Percentage % | Run Differential |
|---|---|---|---|
| April | 13-7 | 65% | +23 |
| May | 17-8 | 68% | +25 |
| June | 15-12 | 55.6% | -6 |
| July | 15-12 | 55.6% | +48 |
| August | 17-12 | 58.6% | +29 |
| September | 18-11 | 62.1% | +13 |
| October | 3-2 | 60% | +4 |
Yes, the Pittsburgh Pirates made the Postseason in 1991. They lost their only series against the Atlanta Braves in the NL Championship Series.
The Pittsburgh Pirates finished the regular season with a run differential of +136. Based on their run differential and their pythagorean expectation, the Pirates could have been expected to have about 95.3 wins, or a 95-67 record in the regular season.
In one-run games, or games that went into extra innings, the 1991 Pittsburgh Pirates went 29-24.
During the regular season, the 1991 Pittsburgh Pirates went 6-6 in extra inning games.
The longest win streak during the regular season for the 1991 Pittsburgh Pirates was a 9 game winning streak.
The longest losing streak that the Pittsburgh Pirates had during the 1991 regular season was 8 games, which happened once during the season.
= Playoff Team
Bold = Division Opponent
| Date | Opponent | Score | ||
|---|---|---|---|---|
| Regular Season | ||||
| Mon, Apr 8, 1991 | vs Montreal Expos | Loss 0 - 7 | ||
| Tue, Apr 9, 1991 | vs Montreal Expos | Win 4 - 3 | ||
| Wed, Apr 10, 1991 | vs Montreal Expos | Win 6 - 3 | ||
| Fri, Apr 12, 1991 | @ Chicago Cubs | Win 3 - 1 | ||
| Sat, Apr 13, 1991 | @ Chicago Cubs | Loss 3 - 7 | ||
| Sun, Apr 14, 1991 | @ Chicago Cubs | Loss 4 - 6 | ||
| Mon, Apr 15, 1991 | vs New York Mets | Loss 3 - 9 | ||
| Tue, Apr 16, 1991 | vs New York Mets | Win 4 - 2 | ||
| Wed, Apr 17, 1991 | vs New York Mets | Win 4 - 0 | ||
| Thu, Apr 18, 1991 | vs Chicago Cubs | Loss 2 - 3 | ||
| Fri, Apr 19, 1991 | vs Chicago Cubs | Win 5 - 4 | ||
| Sat, Apr 20, 1991 | vs Chicago Cubs | Win 9 - 3 | ||
| Sun, Apr 21, 1991 | vs Chicago Cubs | Win 13 - 12 | (11) | |
| Tue, Apr 23, 1991 | @ Montreal Expos | Win 7 - 3 | ||
| Wed, Apr 24, 1991 | @ Montreal Expos | Win 2 - 1 | ||
| Thu, Apr 25, 1991 | @ Montreal Expos | Win 8 - 0 | ||
| Fri, Apr 26, 1991 | @ New York Mets | Loss 0 - 2 | ||
| Sat, Apr 27, 1991 | @ New York Mets | Win 10 - 1 | ||
| Sun, Apr 28, 1991 | @ New York Mets | Win 7 - 3 | ||
| Tue, Apr 30, 1991 | @ Cincinnati Reds | Loss 3 - 4 | ||
| Wed, May 1, 1991 | @ Cincinnati Reds | Win 6 - 4 | ||
| Fri, May 3, 1991 | vs Houston Astros | Win 1 - 0 | ||
| Sat, May 4, 1991 | vs Houston Astros | Loss 3 - 8 | ||
| Sun, May 5, 1991 | vs Houston Astros | Loss 4 - 6 | ||
| Mon, May 6, 1991 | vs Cincinnati Reds | Win 3 - 1 | ||
| Tue, May 7, 1991 | vs Cincinnati Reds | Win 7 - 2 | ||
| Wed, May 8, 1991 | vs Cincinnati Reds | Win 7 - 2 | ||
| Fri, May 10, 1991 | vs Atlanta Braves | Win 5 - 2 | ||
| Sat, May 11, 1991 | vs Atlanta Braves | Loss 2 - 3 | ||
| Sun, May 12, 1991 | vs Atlanta Braves | Loss 1 - 6 | ||
| Tue, May 14, 1991 | @ Houston Astros | Win 6 - 3 | ||
| Wed, May 15, 1991 | @ Houston Astros | Win 8 - 7 | ||
| Thu, May 16, 1991 | @ Houston Astros | Win 6 - 4 | ||
| Fri, May 17, 1991 | @ Atlanta Braves | Loss 3 - 9 | ||
| Sun, May 19, 1991 | @ Atlanta Braves | Loss 1 - 7 | ||
| Tue, May 21, 1991 | vs St. Louis Cardinals | Win 5 - 3 | ||
| Wed, May 22, 1991 | vs St. Louis Cardinals | Loss 3 - 5 | ||
| Thu, May 23, 1991 | vs St. Louis Cardinals | Loss 2 - 8 | ||
| Fri, May 24, 1991 | vs Philadelphia Phillies | Win 9 - 1 | ||
| Sat, May 25, 1991 | vs Philadelphia Phillies | Win 4 - 2 | (11) | |
| Sun, May 26, 1991 | vs Philadelphia Phillies | Win 5 - 2 | ||
| Mon, May 27, 1991 | @ St. Louis Cardinals | Win 8 - 0 | ||
| Tue, May 28, 1991 | @ St. Louis Cardinals | Win 9 - 8 | ||
| Wed, May 29, 1991 | @ St. Louis Cardinals | Win 6 - 0 | ||
| Fri, May 31, 1991 | @ Philadelphia Phillies | Win 5 - 1 | ||
| Sat, Jun 1, 1991 | @ Philadelphia Phillies | Win 5 - 3 | ||
| Sun, Jun 2, 1991 | @ Philadelphia Phillies | Win 5 - 3 | ||
| Tue, Jun 4, 1991 | vs San Francisco Giants | Loss 3 - 5 | ||
| Wed, Jun 5, 1991 | vs San Francisco Giants | Win 7 - 3 | ||
| Thu, Jun 6, 1991 | vs San Francisco Giants | Loss 3 - 6 | ||
| Fri, Jun 7, 1991 | vs San Diego Padres | Win 1 - 0 | ||
| Sat, Jun 8, 1991 | vs San Diego Padres | Loss 0 - 11 | ||
| Sun, Jun 9, 1991 | vs San Diego Padres | Loss 3 - 5 | ||
| Mon, Jun 10, 1991 | vs San Diego Padres | Win 5 - 3 | ||
| Wed, Jun 12, 1991 | vs Los Angeles Dodgers | Win 2 - 1 | ||
| Thu, Jun 13, 1991 | vs Los Angeles Dodgers | Loss 2 - 3 | ||
| Fri, Jun 14, 1991 | @ San Francisco Giants | Loss 2 - 3 | ||
| Sat, Jun 15, 1991 | @ San Francisco Giants | Loss 0 - 4 | ||
| Sun, Jun 16, 1991 | @ San Francisco Giants | Win 4 - 3 | ||
| Mon, Jun 17, 1991 | @ San Diego Padres | Win 3 - 2 | ||
| Tue, Jun 18, 1991 | @ San Diego Padres | Win 3 - 1 | ||
| Wed, Jun 19, 1991 | @ San Diego Padres | Loss 5 - 6 | ||
| Thu, Jun 20, 1991 | @ Los Angeles Dodgers | Loss 2 - 3 | ||
| Fri, Jun 21, 1991 | @ Los Angeles Dodgers | Win 5 - 1 | ||
| Sat, Jun 22, 1991 | @ Los Angeles Dodgers | Loss 1 - 4 | ||
| Sun, Jun 23, 1991 | @ Los Angeles Dodgers | Loss 0 - 2 | ||
| Tue, Jun 25, 1991 | vs Chicago Cubs | Loss 1 - 5 | ||
| Wed, Jun 26, 1991 | vs Chicago Cubs | Win 7 - 6 | ||
| Thu, Jun 27, 1991 | vs Chicago Cubs | Win 4 - 3 | ||
| Fri, Jun 28, 1991 | @ Montreal Expos | Win 6 - 1 | ||
| Sat, Jun 29, 1991 | @ Montreal Expos | Win 2 - 1 | ||
| Sun, Jun 30, 1991 | @ Montreal Expos | Win 2 - 1 | ||
| Mon, Jul 1, 1991 | @ Chicago Cubs | Loss 5 - 6 | (13) | |
| Tue, Jul 2, 1991 | @ Chicago Cubs | Win 13 - 4 | ||
| Wed, Jul 3, 1991 | @ Chicago Cubs | Win 11 - 7 | ||
| Thu, Jul 4, 1991 | @ Chicago Cubs | Loss 8 - 9 | (11) | |
| Fri, Jul 5, 1991 | vs Montreal Expos | Loss 3 - 4 | ||
| Sat, Jul 6, 1991 | vs Montreal Expos | Loss 1 - 2 | ||
| Sun, Jul 7, 1991 | vs Montreal Expos | Win 6 - 1 | ||
| Thu, Jul 11, 1991 | @ Cincinnati Reds | Win 10 - 6 | ||
| Fri, Jul 12, 1991 | @ Cincinnati Reds | Win 7 - 2 | ||
| Sat, Jul 13, 1991 | @ Cincinnati Reds | Win 5 - 2 | ||
| Sun, Jul 14, 1991 | @ Cincinnati Reds | Win 10 - 6 | ||
| Mon, Jul 15, 1991 | vs Houston Astros | Win 8 - 0 | ||
| Tue, Jul 16, 1991 | vs Houston Astros | Win 6 - 4 | ||
| Wed, Jul 17, 1991 | vs Houston Astros | Loss 2 - 10 | ||
| Fri, Jul 19, 1991 | vs Cincinnati Reds | Win 7 - 2 | ||
| Sat, Jul 20, 1991 | vs Cincinnati Reds | Loss 2 - 3 | ||
| Sun, Jul 21, 1991 | vs Cincinnati Reds | Win 6 - 0 | ||
| Mon, Jul 22, 1991 | vs Atlanta Braves | Loss 3 - 7 | ||
| Tue, Jul 23, 1991 | vs Atlanta Braves | Win 12 - 3 | ||
| Wed, Jul 24, 1991 | vs Atlanta Braves | Win 7 - 4 | ||
| Fri, Jul 26, 1991 | @ Houston Astros | Win 8 - 1 | ||
| Sat, Jul 27, 1991 | @ Houston Astros | Win 11 - 5 | ||
| Sun, Jul 28, 1991 | @ Houston Astros | Loss 7 - 9 | ||
| Mon, Jul 29, 1991 | @ Atlanta Braves | Loss 5 - 7 | ||
| Mon, Jul 29, 1991 | @ Atlanta Braves | Loss 3 - 5 | ||
| Tue, Jul 30, 1991 | @ Atlanta Braves | Loss 3 - 10 | ||
| Wed, Jul 31, 1991 | @ Atlanta Braves | Loss 6 - 8 | ||
| Thu, Aug 1, 1991 | @ St. Louis Cardinals | Loss 3 - 6 | ||
| Fri, Aug 2, 1991 | @ St. Louis Cardinals | Loss 3 - 4 | ||
| Sat, Aug 3, 1991 | @ St. Louis Cardinals | Loss 5 - 6 | (10) | |
| Sun, Aug 4, 1991 | @ St. Louis Cardinals | Win 2 - 1 | ||
| Tue, Aug 6, 1991 | @ New York Mets | Win 3 - 1 | ||
| Wed, Aug 7, 1991 | @ New York Mets | Loss 1 - 7 | ||
| Thu, Aug 8, 1991 | @ New York Mets | Loss 3 - 4 | ||