
12 pitchers are tied for the lowest ERA by a left-handed relief pitcher this season, with an ERA of 0.00. The first three are Josh Hader, Robby Ahlstrom and Cam Booser.
| NAME | ERA | SEASON | TM | G | W | L | W% | GS | 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 | J. Hader | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 1 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 4 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 25.0 | 25.0 | 1.00 | .000 | 0.00 | 0.00 | |||
| 2 | R. Ahlstrom | 0.00 | 2026 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1.1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 13.50 | 0.00 | 0.00 | 50.0 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||||
| 3 | C. Booser | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 0 | 4.50 | 0.00 | 0.00 | 14.3 | 0.0 | 0.50 | .167 | 0.00 | 4.50 | ||||
| 4 | D. Sommers | 0.00 | 2026 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 25.0 | 25.0 | 1.00 | .000 | 0.00 | 0.00 | |||
| 5 | C. Ferguson | 0.00 | 2026 | 4 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 6.1 | 3 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 23 | 0 | 9.95 | 0.00 | 0.00 | 30.4 | 0.0 | 0.47 | .188 | 0.00 | 4.26 | ||||
| 6 | A.J. Minter | 0.00 | 2026 | 4 | 0 | 1 | .000 | 0 | 6 | 0 | 0 | 0 | 3.1 | 3 | 0 | 1 | 0 | 1 | 0 | 3 | 0 | 13 | 0 | 16.20 | 2.70 | 6.00 | 0.00 | 46.2 | 7.7 | 1.20 | .500 | 2.70 | 8.10 | ||
| 7 | L. Allen | 0.00 | 2026 | 1 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 4.0 | 5 | 0 | 2 | 0 | 1 | 0 | 1 | 0 | 19 | 0 | 15.75 | 2.25 | 7.00 | 0.00 | 36.8 | 5.3 | 1.50 | .455 | 4.50 | 11.25 | |||
| 8 | W. Herrera | 0.00 | 2026 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.1 | 2 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 10 | 0 | 7.71 | 3.86 | 2.00 | 0.00 | 20.0 | 10.0 | 1.29 | .286 | 0.00 | 7.71 | |||
| 9 | T. Blach | 0.00 | 2026 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3.0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 9 | 0 | 6.00 | 0.00 | 0.00 | 22.2 | 0.0 | 0.33 | .143 | 0.00 | 3.00 | ||||
| 10 | A. Gamboa | 0.00 | 2026 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 18.00 | 0.00 | 0.00 | 66.7 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||||
| 11 | E. Rivera | 0.00 | 2026 | 1 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 3.1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 10 | 0 | 8.10 | 0.00 | 0.00 | 30.0 | 0.0 | 0.30 | .143 | 0.00 | 2.70 | ||||
| 12 | J. Koenig | 0.00 | 2026 | 3 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 2.1 | 3 | 0 | 2 | 0 | 2 | 0 | 0 | 2 | 13 | 1 | 15.43 | 7.71 | 2.00 | 0.00 | 30.8 | 15.4 | 2.14 | .429 | 7.71 | 11.57 | |||
| 13 | A. Chapman | 0.48 | 2026 | 19 | 0 | 1 | .000 | 0 | 25 | 0 | 0 | 12 | 18.2 | 9 | 1 | 1 | 0 | 7 | 1 | 15 | 0 | 72 | 1 | 12.05 | 3.38 | 3.57 | 0.00 | 34.7 | 9.7 | 0.86 | .231 | 0.48 | 4.34 | ||
| 14 | Y. Matsui | 0.54 | 2026 | 10 | 0 | 0 | 0 | 18 | 0 | 0 | 0 | 16.2 | 7 | 1 | 1 | 0 | 9 | 1 | 2 | 0 | 65 | 0 | 9.72 | 4.86 | 2.00 | 0.00 | 27.7 | 13.8 | 0.96 | .189 | 0.54 | 3.78 | |||
| 15 | B. Garcia | 0.69 | 2026 | 15 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 13.0 | 8 | 1 | 1 | 0 | 2 | 2 | 2 | 0 | 46 | 1 | 7.62 | 1.38 | 5.50 | 0.00 | 23.9 | 4.3 | 0.77 | .258 | 0.69 | 5.54 | |||
| 16 | T. Samaniego | 0.93 | 2026 | 19 | 0 | 2 | .000 | 0 | 15 | 0 | 0 | 0 | 19.1 | 16 | 2 | 4 | 1 | 8 | 2 | 6 | 0 | 81 | 0 | 6.98 | 3.72 | 1.88 | 0.47 | 18.5 | 9.9 | 1.24 | .273 | 1.86 | 7.45 | ||
| 17 | D. Lee | 1.26 | 2026 | 29 | 2 | 0 | 1.000 | 0 | 35 | 0 | 0 | 0 | 28.2 | 14 | 4 | 5 | 1 | 4 | 0 | 0 | 0 | 104 | 0 | 10.99 | 1.26 | 8.75 | 0.31 | 33.7 | 3.8 | 0.63 | .203 | 1.57 | 4.40 | ||
| 18 | S. Aldegheri | 1.29 | 2026 | 2 | 1 | 0 | 1.000 | 0 | 7 | 0 | 0 | 0 | 7.0 | 6 | 1 | 1 | 1 | 3 | 0 | 1 | 0 | 30 | 0 | 9.00 | 3.86 | 2.33 | 1.29 | 23.3 | 10.0 | 1.29 | .263 | 1.29 | 7.71 | ||
| 19 | B. Hudson | 1.42 | 2026 | 26 | 3 | 1 | .750 | 0 | 25 | 0 | 0 | 2 | 25.1 | 22 | 4 | 6 | 0 | 9 | 3 | 7 | 1 | 107 | 0 | 8.88 | 3.20 | 2.78 | 0.00 | 23.4 | 8.4 | 1.22 | .314 | 2.13 | 7.82 | ||
| 20 | E. Sisk | 1.44 | 2026 | 21 | 0 | 0 | 0 | 30 | 0 | 0 | 0 | 25.0 | 17 | 4 | 4 | 1 | 9 | 3 | 4 | 0 | 99 | 0 | 10.80 | 3.24 | 3.33 | 0.36 | 30.3 | 9.1 | 1.04 | .286 | 1.44 | 6.12 | |||
| 21 | D. Dodd | 1.54 | 2026 | 8 | 0 | 0 | 0 | 13 | 0 | 0 | 1 | 11.2 | 7 | 2 | 2 | 1 | 1 | 0 | 3 | 1 | 43 | 1 | 10.03 | 0.77 | 13.00 | 0.77 | 30.2 | 2.3 | 0.69 | .214 | 1.54 | 5.40 | |||
| 22 | B. Raley | 1.54 | 2026 | 26 | 1 | 1 | .500 | 0 | 27 | 0 | 0 | 0 | 23.1 | 18 | 4 | 5 | 2 | 11 | 2 | 3 | 1 | 100 | 1 | 10.41 | 4.24 | 2.45 | 0.77 | 27.0 | 11.0 | 1.24 | .276 | 1.93 | 6.94 | ||
| 23 | B. Fitzpatrick | 1.59 | 2026 | 4 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 5.2 | 7 | 1 | 2 | 0 | 3 | 0 | 1 | 0 | 27 | 0 | 6.35 | 4.76 | 1.33 | 0.00 | 14.8 | 11.1 | 1.76 | .350 | 3.18 | 11.12 | |||
| 24 | J. A. Ferrer | 1.63 | 2026 | 30 | 0 | 1 | .000 | 0 | 24 | 0 | 0 | 3 | 27.2 | 30 | 5 | 6 | 1 | 3 | 3 | 4 | 0 | 117 | 3 | 7.81 | 0.98 | 8.00 | 0.33 | 20.5 | 2.6 | 1.19 | .337 | 1.95 | 9.76 | ||
| 25 | E. Sabrowski | 1.71 | 2026 | 25 | 2 | 1 | .667 | 0 | 39 | 0 | 0 | 0 | 21.0 | 7 | 4 | 4 | 1 | 13 | 0 | 1 | 0 | 83 | 3 | 16.71 | 5.57 | 3.00 | 0.43 | 47.0 | 15.7 | 0.95 | .200 | 1.71 | 3.00 | ||
StatMuse has game-level data for ERA going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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| NL East | W | L | PCT | GB |
|---|---|---|---|---|
42 | 21 | .667 | ||
33 | 29 | .532 | 8.5 | |
31 | 32 | .492 | 11.0 | |
29 | 34 | .460 | 13.0 | |
27 | 35 | .435 | 14.5 | |
| NL Central | W | L | PCT | GB |
37 | 23 | .617 | ||
34 | 29 | .540 | 4.5 | |
32 | 28 | .533 | 5.0 | |
33 | 30 | .524 | 5.5 | |
31 | 30 | .508 | 6.5 | |
| NL West | W | L | PCT | GB |
40 | 23 | .635 | ||
33 | 29 | .532 | 6.5 | |
32 | 29 | .525 | 7.0 | |
25 | 38 | .397 | 15.0 | |
24 | 39 | .381 | 16.0 |
| AL East | W | L | PCT | GB |
|---|---|---|---|---|
36 | 23 | .610 | ||
37 | 25 | .597 | 0.5 | |
30 | 33 | .476 | 8.0 | |
30 | 33 | .476 | 8.0 | |
26 | 35 | .426 | 11.0 | |
| AL Central | W | L | PCT | GB |
36 | 28 | .563 | ||
33 | 29 | .532 | 2.0 | |
29 | 35 | .453 | 7.0 | |
25 | 38 | .397 | 10.5 | |
25 | 38 | .397 | 10.5 | |
| AL West | W | L | PCT | GB |
33 | 30 | .524 | ||
30 | 32 | .484 | 2.5 | |
30 | 32 | .484 | 2.5 | |
28 | 36 | .438 | 5.5 | |
24 | 39 | .381 | 9.0 |