1921 MLB Winning Percentage Leaders
Wins per decision
Dave Brown led the majors in winning percentage with .938 in 1921, 160 points ahead of Jimmy Oldham (.778). It stands 18th among all single seasons in MLB history.
Showing pitchers with at least 68.0 innings — the standard 1.0 inning per team game. Show all players
Led all of MLB in 1921
Dave Brown
Chicago American Giants
.938
Winning Percentage
.160 clear of Jimmy Oldham
Showing Winning Percentage and the stats that give it context
Full stat line
| # | Player | Team | W-L% | W | L | ERA | IP |
|---|---|---|---|---|---|---|---|
| 1 |
|
CAG | .938 | 15 | 1 | 1.84 | 151.2 |
| 2 | Jimmy Oldham | SLG | .778 | 7 | 2 | 4.20 | 90.0 |
| 3 |
|
NYA | .750 | 27 | 9 | 3.05 | 336.2 |
| 4 | Jack Marshall | CAG | .750 | 6 | 2 | 2.63 | 75.1 |
| 5 | Whitey Glazner | PIT | .737 | 14 | 5 | 2.77 | 234.0 |
| 6 |
|
PIT | .737 | 14 | 5 | 2.64 | 160.0 |
| 7 |
|
SLN | .714 | 15 | 6 | 2.59 | 208.2 |
| 8 |
|
SLA | .692 | 27 | 12 | 3.55 | 326.2 |
| 9 |
|
SLA | .688 | 11 | 5 | 4.72 | 164.0 |
| 10 |
|
NY1 | .667 | 20 | 10 | 3.63 | 260.2 |
| 11 | Bullet Rogan | KCM | .667 | 16 | 8 | 1.82 | 202.2 |
| 12 |
|
CAG | .650 | 13 | 7 | 3.40 | 137.2 |
| 13 |
|
BOS | .640 | 16 | 9 | 3.50 | 254.1 |
| 14 |
|
SLG | .640 | 16 | 9 | 2.90 | 195.1 |
| 15 |
|
CLE | .639 | 23 | 13 | 3.37 | 315.0 |
| 16 |
|
CLE | .636 | 14 | 8 | 3.94 | 194.1 |
| 17 |
|
BRO | .629 | 22 | 13 | 2.83 | 302.1 |
| 18 |
|
CHA | .625 | 25 | 15 | 2.48 | 330.2 |
| 19 |
|
NY1 | .625 | 15 | 9 | 3.10 | 258.2 |
| 20 |
|
NY1 | .621 | 18 | 11 | 3.61 | 249.1 |
| 21 |
|
CLE +2 | .619 | 13 | 8 | 3.89 | 178.1 |
| 22 |
|
PIT | .611 | 22 | 14 | 3.25 | 327.0 |
| 23 |
|
BSN | .600 | 15 | 10 | 3.45 | 239.2 |
| 24 |
|
NY1 | .600 | 15 | 10 | 4.22 | 221.2 |
| 25 |
|
NYA | .600 | 18 | 12 | 4.08 | 245.0 |
| 26 |
|
SLN | .600 | 18 | 12 | 3.50 | 244.1 |
| 27 |
|
CS | .600 | 15 | 10 | 2.74 | 217.0 |
| 28 |
|
COB | .600 | 6 | 4 | 3.89 | 83.1 |
| 29 |
|
NYA | .594 | 19 | 13 | 3.09 | 282.1 |
| 30 |
|
BOS | .590 | 23 | 16 | 3.22 | 298.2 |
| 31 |
|
BSN | .588 | 20 | 14 | 3.52 | 299.0 |
| 32 | Bill Pertica | SLN | .583 | 14 | 10 | 3.37 | 208.1 |
| 33 |
|
KCM | .583 | 7 | 5 | 4.15 | 99.2 |
| 34 |
|
WS1 | .563 | 18 | 14 | 3.00 | 288.0 |
| 35 |
|
KCM | .560 | 14 | 11 | 3.40 | 193.0 |
| 36 |
|
CLE | .552 | 16 | 13 | 4.01 | 238.0 |
| 37 |
|
BRO | .550 | 11 | 9 | 2.89 | 190.0 |
| 38 |
|
ABC | .550 | 11 | 9 | 3.44 | 198.2 |
| 39 |
|
CIN | .548 | 17 | 14 | 3.39 | 265.2 |
| 40 |
|
WS1 | .548 | 17 | 14 | 3.51 | 264.0 |
| 41 |
|
CLE | .538 | 14 | 12 | 4.70 | 191.2 |
| 42 |
|
BSN | .536 | 15 | 13 | 3.70 | 233.2 |
| 43 |
|
CHN | .536 | 15 | 13 | 3.39 | 252.0 |
| 44 |
|
SLA | .533 | 8 | 7 | 4.97 | 166.2 |
| 45 | John Finner | SLG | .533 | 8 | 7 | 4.08 | 134.2 |
| 46 |
|
WS1 | .529 | 18 | 16 | 3.96 | 250.0 |
| 47 |
|
CHA | .528 | 19 | 17 | 4.72 | 308.2 |
| 48 | Dicta Johnson | ABC | .526 | 10 | 9 | 3.82 | 155.2 |
| 49 |
|
DS +1 | .522 | 12 | 11 | 3.36 | 177.0 |
| 50 |
|
BSN | .519 | 14 | 13 | 3.85 | 259.1 |
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