50 players were tied for the worst strikeout percentage in 2021, with a strikeout percentage of 100.0. The first three are R.J. Alaniz, Jaime Barría and Chris Bassitt.
| NAME | SO% | SEASON | TM | G | AB | R | H | 2B | 3B | HR | RBI | BB | HBP | SO | SB | CS | PA | TB | XBH | SH | SF | IBB | GIDP | AVG | OBP | SLG | OPS | WRC | WRAA | WOBA | WRC+ | BRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | R.J. Alaniz | 100.0 | 2021 |  CIN | 3 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -114 | -0.3 |
| 2 | | J. Barría | 100.0 | 2021 |  LAA | 1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.8 | .000 | -116 | -0.8 |
| 3 |  | C. Bassitt | 100.0 | 2021 |  OAK | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -109 | -0.5 |
| 4 | | A. Bradley | 100.0 | 2021 |  PHI | 49 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -109 | -0.3 |
| 5 | | J. Brebbia | 100.0 | 2021 |  SFG | 17 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -105 | -0.3 |
| 6 | | R. Brothers | 100.0 | 2021 |  CHC | 54 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -108 | -0.5 |
| 7 | | T. Chatwood | 100.0 | 2021 | TOT | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -105 | -0.3 |
| 8 | | J. Chavez | 100.0 | 2021 |  ATL | 30 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.8 | .000 | -110 | -0.8 |
| 9 | | S. Coonrod | 100.0 | 2021 | PHI | 40 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -109 | -0.3 |
| 10 | | D. Coulombe | 100.0 | 2021 |  MIN | 5 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -113 | -0.3 |
| 11 | | J. Diekman | 100.0 | 2021 | OAK | 4 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -109 | -0.3 |
| 12 | | J. Fernandez | 100.0 | 2021 |  STL | 16 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -106 | -0.3 |
| 13 | | M. Foltynewicz | 100.0 | 2021 |  TEX | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -116 | -0.5 |
| 14 | | J. García | 100.0 | 2021 | SFG | 54 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -105 | -0.5 |
| 15 | | T. Glasnow | 100.0 | 2021 |  TBR | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -109 | -0.5 |
| 16 | | J. Guerra | 100.0 | 2021 |  WSH | 6 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -109 | -0.3 |
| 17 | | J. Gustave | 100.0 | 2021 |  MIL | 12 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -109 | -0.5 |
| 18 | | H. Hembree | 100.0 | 2021 | TOT | 56 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -114 | -0.3 |
| 19 | | S. Hentges | 100.0 | 2021 |  CLE | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -112 | -0.3 |
| 20 |  | C. Holmes | 100.0 | 2021 | TOT | 47 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -110 | -0.3 |
| 21 | | T. Houck | 100.0 | 2021 |  BOS | 1 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -119 | -0.3 |
| 22 |  | K. Jansen | 100.0 | 2021 |  LAD | 66 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -106 | -0.3 |
| 23 | | J. Jewell | 100.0 | 2021 | CHC | 10 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -108 | -0.3 |
| 24 |  | Y. Kikuchi | 100.0 | 2021 |  SEA | 1 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.5 | .000 | -110 | -0.5 |
| 25 |  | C. Kimbrel | 100.0 | 2021 | TOT | 39 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | .000 | .000 | .000 | .000 | 0 | -0.3 | .000 | -108 | -0.3 |
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