1921 Boston Red Sox season
The 1921 Boston Red Sox season was the 21st season in the franchise's Major League Baseball history. The Red Sox finished fifth in the American League with a record of 75 wins and 79 losses, games behind the New York Yankees.
Regular season
Opening Day lineup
Source:Player stats
Batting
Starters by position
Note: Pos = Position; G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in| Pos | Player | G | AB | H | Avg. | HR | RBI |
| C | Muddy Ruel | 113 | 358 | 99 | .277 | 1 | 45 |
| 1B | Stuffy McInnis | 152 | 584 | 179 | .307 | 0 | 76 |
| 2B | Del Pratt | 135 | 521 | 169 | .324 | 5 | 102 |
| SS | Everett Scott | 154 | 576 | 151 | .262 | 1 | 62 |
| 3B | 120 | 412 | 117 | .284 | 0 | 35 | |
| OF | Nemo Leibold | 123 | 467 | 143 | .306 | 0 | 31 |
| OF | Mike Menosky | 133 | 477 | 143 | .300 | 3 | 45 |
| OF | Shano Collins | 141 | 542 | 155 | .286 | 4 | 69 |
Other batters
Note: G = Games played; AB = At bats; H = Hits; Avg. = Batting average; HR = Home runs; RBI = Runs batted in| Player | G | AB | H | Avg. | HR | RBI |
| 78 | 232 | 44 | .190 | 0 | 13 | |
| Roxy Walters | 54 | 169 | 34 | .201 | 0 | 14 |
| Tim Hendryx | 49 | 137 | 33 | .241 | 0 | 22 |
| Pinky Pittenger | 40 | 91 | 18 | .198 | 0 | 5 |
| Sammy Vick | 44 | 77 | 20 | .260 | 0 | 9 |
| Ernie Neitzke | 11 | 25 | 6 | .240 | 0 | 2 |
| John [Perrin (American sportsman)|John Perrin] | 4 | 13 | 3 | .231 | 0 | 1 |
| Ed Chaplin | 3 | 2 | 0 | .000 | 0 | 0 |
| Hob Hiller | 1 | 1 | 0 | .000 | 0 | 0 |
Pitching
Starting pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts| Player | G | IP | W | L | ERA | SO |
| 40 | 298.2 | 23 | 16 | 3.22 | 98 | |
| 37 | 235.1 | 16 | 9 | 3.50 | 96 | |
| 32 | 222.2 | 13 | 14 | 4.04 | 91 | |
| Elmer Myers | 30 | 172.0 | 8 | 12 | 4.87 | 40 |
| Allan Sothoron | 2 | 6.0 | 0 | 2 | 13.50 | 2 |
Other pitchers
Note: G = Games pitched; IP = Innings pitched; W = Wins; L = Losses; ERA = Earned run average; SO = Strikeouts| Player | G | IP | W | L | ERA | SO |
| Allen Russell | 39 | 173.0 | 6 | 11 | 4.11 | 60 |
| Benn Karr | 26 | 117.2 | 8 | 7 | 3.67 | 37 |
| Hank Thormahlen | 23 | 96.1 | 1 | 7 | 4.48 | 17 |
| Curt Fullerton | 4 | 15.1 | 0 | 1 | 8.80 | 4 |
Relief pitchers
Note: G = Games pitched; W = Wins; L = Losses; SV = Saves; ERA = Earned run average; SO = Strikeouts| Player | G | W | L | SV | ERA | SO |
| Ernie Neitzke | 2 | 0 | 0 | 0 | 6.14 | 1 |
| Sam Dodge | 1 | 0 | 0 | 0 | 9.00 | 0 |