1931 Brooklyn Robins season
The 1931 Brooklyn Robins finished in fourth place, after which longtime manager Wilbert Robinson announced his retirement with 1,399 career victories.
Offseason
Regular season
Jack Quinn became the oldest person in baseball history to pitch on Opening Day. He was 47 when he started for Brooklyn on Opening Day in 1931. It would be Quinn's only start of the season, as he pitched the rest of the year in relief.
Notable transactions
Player stats
Batting
Starters by position
Note: Pos = Position; G = Games played; AB = At bats; R = Runs; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in; SB = Stolen bases
| Pos | Player | G | AB | R | H | Avg. | HR | RBI | SB |
| C | | 112 | 360 | 38 | 97 | .269 | 0 | 40 | 1 |
| 1B | | 152 | 587 | 90 | 170 | .290 | 12 | 87 | 4 |
| 2B | | 118 | 413 | 46 | 113 | .274 | 0 | 45 | 2 |
| 3B | | 145 | 552 | 60 | 147 | .266 | 0 | 46 | 3 |
| SS | | 85 | 272 | 27 | 65 | .239 | 1 | 29 | 2 |
| LF | | 134 | 512 | 85 | 172 | .336 | 7 | 75 | 5 |
| CF | | 146 | 611 | 81 | 165 | .270 | 17 | 71 | 2 |
| RF | | 151 | 610 | 93 | 191 | .313 | 18 | 97 | 17 |
Other batters
Note: G = Games played; AB = At bats; R = Runs; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in; SB = Stolen bases
| Player | G | AB | R | H | Avg. | HR | RBI | SB |
| 77 | 268 | 36 | 76 | .284 | 9 | 32 | 1 |
| 73 | 182 | 20 | 54 | .297 | 4 | 23 | 1 |
| 74 | 181 | 26 | 48 | .265 | 1 | 21 | 5 |
| 67 | 153 | 22 | 43 | .281 | 0 | 26 | 0 |
| 24 | 45 | 5 | 12 | .267 | 1 | 4 | 1 |
| 22 | 31 | 3 | 7 | .226 | 0 | 1 | 1 |
| 19 | 31 | 10 | 5 | .161 | 0 | 0 | 0 |
| 6 | 17 | 3 | 5 | .294 | 0 | 2 | 0 |
| 3 | 9 | 0 | 2 | .222 | 0 | 0 | 0 |
| 6 | 5 | 0 | 1 | .200 | 0 | 0 | 0 |
| 9 | 4 | 2 | 2 | .500 | 0 | 0 | 0 |
| 1 | 3 | 1 | 2 | .667 | 0 | 0 | 0 |
| 1 | 1 | 0 | 0 | .000 | 0 | 0 | 0 |
Pitching
Starting pitchers
Note: G = Games pitched; GS = Games started; CG = Complete games; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; BB = Bases on balls; SO = Strikeouts
| Player | G | GS | CG | IP | W | L | ERA | BB | SO |
| 34 | 28 | 16 | 233.1 | 14 | 10 | 3.20 | 52 | 96 |
| 30 | 29 | 12 | 218.2 | 11 | 13 | 3.38 | 53 | 150 |
| 28 | 26 | 3 | 149.1 | 7 | 9 | 5.00 | 44 | 50 |
| 24 | 17 | 11 | 143.0 | 9 | 9 | 3.97 | 39 | 23 |
| 25 | 19 | 6 | 128.2 | 11 | 8 | 4.83 | 32 | 50 |
| 19 | 15 | 5 | 102.2 | 7 | 6 | 4.56 | 27 | 25 |
| 5 | 4 | 2 | 31.0 | 3 | 1 | 2.32 | 13 | 12 |
Other pitchers
Note: G = Games pitched; GS = Games started; CG = Complete games; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; BB = Bases on balls; SO = Strikeouts
| Player | G | GS | CG | IP | W | L | ERA | BB | SO |
| 31 | 10 | 7 | 135.1 | 9 | 7 | 3.46 | 23 | 43 |
| 6 | 1 | 0 | 15.1 | 0 | 1 | 5.28 | 7 | 1 |
Relief pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; BB = Bases on balls; SO = Strikeouts
| Player | G | IP | W | L | SV | ERA | BB | SO |
| 39 | 64.1 | 5 | 4 | 15 | 2.66 | 24 | 25 |
| 23 | 61.2 | 1 | 2 | 0 | 3.79 | 13 | 35 |
| 22 | 57.1 | 2 | 2 | 1 | 4.55 | 13 | 30 |
| 8 | 14.1 | 0 | 1 | 0 | 2.51 | 10 | 6 |
| 1 | 1.0 | 0 | 0 | 0 | 0.00 | 1 | 0 |
Awards and honors
League top five finishers
Babe Herman
Dazzy Vance