
50 pitchers are tied for the best ERA by a relief pitcher this season, with an ERA of 0.00. The first three are Jacob Waguespack, Michael Rucker and JR Ritchie.
Interpreted as:
lowest era MLB reliever minimum 20ip this regular season| 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. Waguespack | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 20.0 | 20.0 | 2.00 | .333 | 0.00 | 9.00 | |||
| 2 | M. Rucker | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 9.00 | 0.00 | 0.00 | 33.3 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||||
| 3 | JR Ritchie | 0.00 | 2026 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 5.0 | 2 | 0 | 0 | 0 | 2 | 0 | 1 | 1 | 18 | 0 | 9.00 | 3.60 | 2.50 | 0.00 | 27.8 | 11.1 | 0.80 | .182 | 0.00 | 3.60 | |||
| 4 | J. Karinchak | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 4 | 0 | 9.00 | 0.00 | 0.00 | 25.0 | 0.0 | 1.00 | .333 | 0.00 | 9.00 | ||||
| 5 | J. Criswell | 0.00 | 2026 | 2 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 9 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 22.2 | 22.2 | 1.50 | .200 | 0.00 | 4.50 | |||
| 6 | T. Callihan | 0.00 | 2026 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 5 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 20.0 | 2.00 | .250 | 0.00 | 9.00 | |||
| 7 | C. Crow | 0.00 | 2026 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 1 | 9 | 0 | 0.00 | 4.50 | 0.00 | 0.00 | 0.0 | 11.1 | 1.00 | .125 | 0.00 | 4.50 | |||
| 8 | S. Natera Jr. | 0.00 | 2026 | 2 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 2.2 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 9 | 1 | 13.50 | 3.38 | 4.00 | 0.00 | 44.4 | 11.1 | 0.38 | .000 | 0.00 | 0.00 | |||
| 9 | T. Kahnle | 0.00 | 2026 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 4.0 | 4 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 16 | 0 | 6.75 | 4.50 | 1.50 | 0.00 | 18.8 | 12.5 | 1.50 | .364 | 0.00 | 9.00 | |||
| 10 | J. Hader | 0.00 | 2026 | 5 | 1 | 0 | 1.000 | 0 | 7 | 0 | 0 | 2 | 5.0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 16 | 0 | 12.60 | 1.80 | 7.00 | 0.00 | 43.8 | 6.3 | 0.20 | .000 | 0.00 | 0.00 | ||
| 11 | R. Ahlstrom | 0.00 | 2026 | 4 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 5.2 | 3 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 19 | 0 | 4.76 | 0.00 | 0.00 | 15.8 | 0.0 | 0.53 | .188 | 0.00 | 4.76 | ||||
| 12 | C. Booser | 0.00 | 2026 | 3 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 4.0 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 14 | 0 | 11.25 | 2.25 | 5.00 | 0.00 | 35.7 | 7.1 | 0.75 | .250 | 0.00 | 4.50 | |||
| 13 | D. Sommers | 0.00 | 2026 | 6 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 4.2 | 2 | 0 | 0 | 0 | 3 | 1 | 0 | 1 | 20 | 1 | 13.50 | 5.79 | 2.33 | 0.00 | 35.0 | 15.0 | 1.07 | .222 | 0.00 | 3.86 | |||
| 14 | C. Weston | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 3 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 33.3 | 33.3 | 1.00 | .000 | 0.00 | 0.00 | |||
| 15 | A.J. Minter | 0.00 | 2026 | 7 | 0 | 1 | .000 | 0 | 6 | 0 | 0 | 0 | 6.2 | 4 | 0 | 1 | 0 | 1 | 0 | 4 | 0 | 25 | 0 | 8.10 | 1.35 | 6.00 | 0.00 | 24.0 | 4.0 | 0.75 | .222 | 1.35 | 5.40 | ||
| 16 | S. Haggerty | 0.00 | 2026 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1.0 | 0 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 0.00 | .000 | 0.00 | 0.00 | ||||
| 17 | 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 | |||
| 18 | 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 | |||
| 19 | T. Andrews | 0.00 | 2026 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 3.0 | 1 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 11 | 0 | 3.00 | 6.00 | 0.50 | 0.00 | 9.1 | 18.2 | 1.00 | .125 | 0.00 | 3.00 | |||
| 20 | V. Mederos | 0.00 | 2026 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2.0 | 0 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 6 | 0 | 0.00 | 4.50 | 0.00 | 0.00 | 0.0 | 16.7 | 0.50 | .000 | 0.00 | 0.00 | |||
| 21 | J. Sanoja | 0.00 | 2026 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.0 | 1 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 7 | 0 | 4.50 | 0.00 | 0.00 | 14.3 | 0.0 | 0.50 | .167 | 0.00 | 4.50 | ||||
| 22 | Y. Cruz | 0.00 | 2026 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 2.1 | 1 | 0 | 0 | 0 | 0 | 1 | 1 | 0 | 9 | 0 | 11.57 | 0.00 | 0.00 | 33.3 | 0.0 | 0.43 | .200 | 0.00 | 3.86 | ||||
| 23 | D. Duarte | 0.00 | 2026 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2.1 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 | 0 | 3.86 | 0.00 | 0.00 | 14.3 | 0.0 | 0.43 | .167 | 0.00 | 3.86 | ||||
| 24 | K. Rocker | 0.00 | 2026 | 1 | 1 | 0 | 1.000 | 0 | 7 | 0 | 0 | 0 | 7.2 | 3 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 28 | 0 | 8.22 | 3.52 | 2.33 | 0.00 | 25.0 | 10.7 | 0.78 | .167 | 0.00 | 3.52 | ||
| 25 | 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 | ||||
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 |
|---|---|---|---|---|
45 | 24 | .652 | ||
37 | 32 | .536 | 8.0 | |
35 | 35 | .500 | 10.5 | |
35 | 35 | .500 | 10.5 | |
31 | 38 | .449 | 14.0 | |
| NL Central | W | L | PCT | GB |
42 | 25 | .627 | ||
37 | 30 | .552 | 5.0 | |
36 | 34 | .514 | 7.5 | |
35 | 35 | .500 | 8.5 | |
32 | 36 | .471 | 10.5 | |
| NL West | W | L | PCT | GB |
44 | 26 | .629 | ||
35 | 33 | .515 | 8.0 | |
35 | 34 | .507 | 8.5 | |
28 | 42 | .400 | 16.0 | |
26 | 44 | .371 | 18.0 |
| AL East | W | L | PCT | GB |
|---|---|---|---|---|
40 | 26 | .606 | ||
41 | 27 | .603 | ||
34 | 36 | .486 | 8.0 | |
34 | 37 | .479 | 8.5 | |
28 | 39 | .418 | 12.5 | |
| AL Central | W | L | PCT | GB |
37 | 31 | .544 | ||
38 | 33 | .535 | 0.5 | |
32 | 39 | .451 | 6.5 | |
29 | 41 | .414 | 9.0 | |
28 | 42 | .400 | 10.0 | |
| AL West | W | L | PCT | GB |
37 | 34 | .521 | ||
34 | 35 | .493 | 2.0 | |
34 | 35 | .493 | 2.0 | |
32 | 39 | .451 | 5.0 | |
28 | 42 | .400 | 8.5 |