50 pitchers are tied for the worst record in starts in a season, with a record of 0-1 in 2025. The first three are Brady Basso, Bruce Zimmermann and Sam Aldegheri.
Interpreted as:
worst records to start by a player season| NAME | REC | GS | SEASON | TM | W% | G | W | L | ERA | SO | CG | SHO | SV | IP | H | ER | R | HR | BB | HBP | GF | IBB | TBF | WP | K/9 | BB/9 | K/BB | HR/9 | K% | BB% | WHIP | BABIP | RA | H/9 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | B. Basso | 0-1 | 1 | 2025 |  ATH | .000 | 1 | 0 | 1 | 6.75 | 0 | 0 | 0 | 0 | 1.1 | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 1 | 9 | 0 | 0.00 | 13.50 | 0.00 | 0.00 | 0.0 | 22.2 | 3.75 | .429 | 6.75 | 20.25 |
| 2 | | B. Zimmermann | 0-1 | 1 | 2025 |  MIL | .000 | 1 | 0 | 1 | 7.50 | 1 | 0 | 0 | 0 | 6.0 | 7 | 5 | 6 | 2 | 2 | 0 | 0 | 0 | 28 | 0 | 1.50 | 3.00 | 0.50 | 3.00 | 3.6 | 7.1 | 1.50 | .217 | 9.00 | 10.50 |
| 3 | | S. Aldegheri | 0-2 | 2 | 2025 |  LAA | .000 | 2 | 0 | 2 | 6.75 | 8 | 0 | 0 | 0 | 9.1 | 14 | 7 | 7 | 2 | 5 | 3 | 0 | 0 | 48 | 1 | 7.71 | 4.82 | 1.60 | 1.93 | 16.7 | 10.4 | 2.04 | .400 | 6.75 | 13.50 |
| 4 | | R. Gasser | 0-2 | 2 | 2025 | MIL | .000 | 2 | 0 | 2 | 3.18 | 5 | 0 | 0 | 0 | 5.2 | 5 | 2 | 6 | 1 | 4 | 2 | 0 | 0 | 29 | 0 | 7.94 | 6.35 | 1.25 | 1.59 | 17.2 | 13.8 | 1.59 | .235 | 9.53 | 7.94 |
| 5 | | B. Sproat | 0-2 | 4 | 2025 |  NYM | .000 | 4 | 0 | 2 | 4.79 | 17 | 0 | 0 | 0 | 20.2 | 18 | 11 | 11 | 0 | 7 | 2 | 0 | 0 | 84 | 0 | 7.40 | 3.05 | 2.43 | 0.00 | 20.2 | 8.3 | 1.21 | .310 | 4.79 | 7.84 |
| 6 | | C. Dana | 0-4 | 5 | 2025 | LAA | .000 | 5 | 0 | 4 | 6.15 | 27 | 0 | 0 | 0 | 26.1 | 23 | 18 | 19 | 7 | 13 | 1 | 0 | 0 | 112 | 2 | 9.23 | 4.44 | 2.08 | 2.39 | 24.1 | 11.6 | 1.37 | .250 | 6.49 | 7.86 |
| 7 | | S. Barlow | 0-1 | 1 | 2025 |  CIN | .000 | 1 | 0 | 1 | 36.00 | 1 | 0 | 0 | 0 | 1.0 | 2 | 4 | 4 | 1 | 3 | 0 | 0 | 0 | 7 | 0 | 9.00 | 27.00 | 0.33 | 9.00 | 14.3 | 42.9 | 5.00 | .500 | 36.00 | 18.00 |
| 8 | | L. Bachar | 0-1 | 1 | 2025 |  MIA | .000 | 1 | 0 | 1 | 9.00 | 2 | 0 | 0 | 0 | 2.0 | 2 | 2 | 2 | 0 | 0 | 0 | 0 | 0 | 8 | 0 | 9.00 | 0.00 | 0.00 | 25.0 | 0.0 | 1.00 | .333 | 9.00 | 9.00 | |
| 9 | | P. Tolle | 0-1 | 3 | 2025 |  BOS | .000 | 3 | 0 | 1 | 7.84 | 12 | 0 | 0 | 0 | 10.1 | 11 | 9 | 9 | 4 | 6 | 0 | 0 | 0 | 47 | 1 | 10.45 | 5.23 | 2.00 | 3.48 | 25.5 | 12.8 | 1.65 | .280 | 7.84 | 9.58 |
| 10 | | M. Brown | 0-5 | 7 | 2025 |  COL | .000 | 7 | 0 | 5 | 7.36 | 23 | 0 | 0 | 0 | 25.2 | 30 | 21 | 21 | 6 | 17 | 5 | 0 | 0 | 126 | 1 | 8.06 | 5.96 | 1.35 | 2.10 | 18.3 | 13.5 | 1.83 | .320 | 7.36 | 10.52 |
| 11 | | J. Beeks | 0-1 | 2 | 2025 |  AZ | .000 | 2 | 0 | 1 | 4.50 | 2 | 0 | 0 | 0 | 2.0 | 1 | 1 | 1 | 1 | 0 | 0 | 0 | 0 | 7 | 0 | 9.00 | 0.00 | 4.50 | 28.6 | 0.0 | 0.50 | .000 | 4.50 | 4.50 | |
| 12 | | V. Mederos | 0-2 | 3 | 2025 | LAA | .000 | 3 | 0 | 2 | 8.31 | 10 | 0 | 0 | 0 | 13.0 | 16 | 12 | 12 | 4 | 8 | 2 | 0 | 0 | 63 | 0 | 6.92 | 5.54 | 1.25 | 2.77 | 15.9 | 12.7 | 1.85 | .308 | 8.31 | 11.08 |
| 13 | | A. Molina | 0-1 | 1 | 2025 | COL | .000 | 1 | 0 | 1 | 12.60 | 2 | 0 | 0 | 0 | 5.0 | 9 | 7 | 7 | 5 | 1 | 0 | 0 | 0 | 24 | 0 | 3.60 | 1.80 | 2.00 | 9.00 | 8.3 | 4.2 | 2.00 | .250 | 12.60 | 16.20 |
| 14 | | T. Adams | 0-1 | 2 | 2025 |  MIN | .000 | 2 | 0 | 1 | 7.36 | 9 | 0 | 0 | 0 | 7.1 | 8 | 6 | 6 | 3 | 4 | 0 | 0 | 0 | 32 | 1 | 11.05 | 4.91 | 2.25 | 3.68 | 28.1 | 12.5 | 1.64 | .313 | 7.36 | 9.82 |
| 15 | | P. Ohl | 0-2 | 3 | 2025 | MIN | .000 | 3 | 0 | 2 | 12.38 | 8 | 0 | 0 | 0 | 8.0 | 17 | 11 | 15 | 4 | 3 | 0 | 0 | 0 | 44 | 0 | 9.00 | 3.38 | 2.67 | 4.50 | 18.2 | 6.8 | 2.50 | .448 | 16.88 | 19.13 |
| 16 | | R. Hill | 0-2 | 2 | 2025 |  KCR | .000 | 2 | 0 | 2 | 5.00 | 4 | 0 | 0 | 0 | 9.0 | 9 | 5 | 7 | 2 | 8 | 0 | 0 | 0 | 43 | 0 | 4.00 | 8.00 | 0.50 | 2.00 | 9.3 | 18.6 | 1.89 | .241 | 7.00 | 9.00 |
| 17 | | I. Hamilton | 0-1 | 1 | 2025 |  NYY | .000 | 1 | 0 | 1 | 27.00 | 0 | 0 | 0 | 0 | 1.0 | 3 | 3 | 3 | 0 | 1 | 0 | 0 | 0 | 7 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 14.3 | 4.00 | .500 | 27.00 | 27.00 |
| 18 | | D. Daniel | 0-1 | 2 | 2025 |  ATL | .000 | 2 | 0 | 1 | 6.00 | 8 | 0 | 0 | 0 | 9.0 | 9 | 6 | 6 | 1 | 7 | 0 | 0 | 0 | 42 | 0 | 8.00 | 7.00 | 1.14 | 1.00 | 19.0 | 16.7 | 1.78 | .308 | 6.00 | 9.00 |
| 19 | | C. Flexen | 0-1 | 1 | 2025 |  CHC | .000 | 1 | 0 | 1 | 6.75 | 2 | 0 | 0 | 0 | 4.0 | 3 | 3 | 3 | 1 | 3 | 0 | 0 | 0 | 18 | 0 | 4.50 | 6.75 | 0.67 | 2.25 | 11.1 | 16.7 | 1.50 | .167 | 6.75 | 6.75 |
| 20 | | A. DeSclafani | 0-2 | 4 | 2025 | AZ | .000 | 4 | 0 | 2 | 6.59 | 13 | 0 | 0 | 0 | 13.2 | 15 | 10 | 10 | 3 | 5 | 3 | 0 | 0 | 64 | 0 | 8.56 | 3.29 | 2.60 | 1.98 | 20.3 | 7.8 | 1.46 | .300 | 6.59 | 9.88 |
| 21 | | S. Ogasawara | 0-1 | 2 | 2025 |  WSH | .000 | 2 | 0 | 1 | 9.45 | 4 | 0 | 0 | 0 | 6.2 | 11 | 7 | 7 | 1 | 1 | 2 | 0 | 0 | 32 | 0 | 5.40 | 1.35 | 4.00 | 1.35 | 12.5 | 3.1 | 1.80 | .417 | 9.45 | 14.85 |
| 22 | | B. Bernardino | 0-1 | 3 | 2025 | BOS | .000 | 3 | 0 | 1 | 2.70 | 4 | 0 | 0 | 0 | 3.1 | 3 | 1 | 1 | 0 | 2 | 0 | 0 | 0 | 15 | 1 | 10.80 | 5.40 | 2.00 | 0.00 | 26.7 | 13.3 | 1.50 | .333 | 2.70 | 8.10 |
| 23 | | M. Waldron | 0-1 | 1 | 2025 |  SDP | .000 | 1 | 0 | 1 | 7.71 | 3 | 0 | 0 | 0 | 4.2 | 6 | 4 | 4 | 1 | 6 | 0 | 0 | 0 | 25 | 3 | 5.79 | 11.57 | 0.50 | 1.93 | 12.0 | 24.0 | 2.57 | .333 | 7.71 | 11.57 |
| 24 | | C. Burns | 0-3 | 8 | 2025 | CIN | .000 | 8 | 0 | 3 | 5.24 | 57 | 0 | 0 | 0 | 34.1 | 33 | 20 | 23 | 4 | 13 | 0 | 0 | 0 | 151 | 0 | 14.94 | 3.41 | 4.38 | 1.05 | 37.7 | 8.6 | 1.34 | .377 | 6.03 | 8.65 |
| 25 | | A. Winans | 0-1 | 1 | 2025 | NYY | .000 | 1 | 0 | 1 | 8.31 | 1 | 0 | 0 | 0 | 4.1 | 5 | 4 | 4 | 1 | 0 | 2 | 0 | 0 | 19 | 0 | 2.08 | 0.00 | 2.08 | 5.3 | 0.0 | 1.15 | .267 | 8.31 | 10.38 | |
StatMuse has game-level data for records and starts going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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