48 pitchers are tied for the best career ERA by a relief pitcher when pitching at least 7 innings, with an ERA of 0.00. The first three are Michael McGreevy, Angel Rondon and Kei Igawa.
| NAME | ERA | IP | G | W | L | W% | GS | SO | CG | SHO | SV | 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 |  | M. McGreevy | 0.00 | 8.2 | 2 | 2 | 0 | 1.000 | 0 | 9 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 1 | 2 | 0 | 30 | 0 | 9.35 | 1.04 | 9.00 | 0.00 | 30.0 | 3.3 | 0.46 | .158 | 0.00 | 3.12 |
| 2 | | A. Rondon | 0.00 | 7.0 | 3 | 1 | 0 | 1.000 | 0 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 27 | 0 | 6.43 | 5.14 | 1.25 | 0.00 | 18.5 | 14.8 | 0.86 | .111 | 0.00 | 2.57 |
| 3 | | K. Igawa | 0.00 | 7.1 | 3 | 1 | 0 | 1.000 | 0 | 6 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 28 | 1 | 7.36 | 4.91 | 1.50 | 0.00 | 21.4 | 14.3 | 1.23 | .278 | 0.00 | 6.14 |
| 4 | | B. Tollberg | 0.00 | 7.0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 26 | 0 | 5.14 | 1.29 | 4.00 | 0.00 | 15.4 | 3.8 | 1.14 | .333 | 0.00 | 9.00 | |
| 5 | | E. Yarnall | 0.00 | 8.2 | 4 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 33 | 0 | 8.31 | 4.15 | 2.00 | 0.00 | 24.2 | 12.1 | 1.15 | .286 | 0.00 | 6.23 | |
| 6 | | D. Musgraves | 0.00 | 9.0 | 4 | 0 | 0 | 0 | 8 | 0 | 0 | 0 | 4 | 0 | 1 | 0 | 6 | 2 | 0 | 0 | 37 | 1 | 8.00 | 6.00 | 1.33 | 0.00 | 21.6 | 16.2 | 1.11 | .190 | 1.00 | 4.00 | |
| 7 | | J. Jaeckel | 0.00 | 8.0 | 4 | 1 | 0 | 1.000 | 0 | 2 | 0 | 0 | 1 | 4 | 0 | 0 | 0 | 3 | 0 | 3 | 0 | 28 | 4 | 2.25 | 3.38 | 0.67 | 0.00 | 7.1 | 10.7 | 0.88 | .174 | 0.00 | 4.50 |
| 8 | | C. Twombly | 0.00 | 7.0 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 4 | 0 | 2 | 0 | 10 | 1 | 3 | 34 | 1 | 2.57 | 12.86 | 0.20 | 0.00 | 5.9 | 29.4 | 2.00 | .190 | 2.57 | 5.14 | ||
| 9 | | L. Jacobus | 0.00 | 10.1 | 4 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 3 | 35 | 0 | 1.74 | 0.87 | 2.00 | 0.00 | 5.7 | 2.9 | 0.39 | .094 | 0.00 | 2.61 | ||
| 10 | | P. Slattery | 0.00 | 8.0 | 3 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 1 | 2 | 3 | 31 | 0 | 1.13 | 1.13 | 1.00 | 0.00 | 3.2 | 3.2 | 0.75 | .185 | 0.00 | 5.63 | ||
| 11 | | R. Jordan | 0.00 | 10.1 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 13 | 8 | 2 | 0 | 0 | 1 | 42 | 0 | 0.00 | 0.00 | 1.74 | 0.0 | 0.0 | 1.26 | .275 | 6.97 | 11.32 | ||||
| 12 | | P. Musser | 0.00 | 15.1 | 6 | 0 | 0 | 0 | 9 | 0 | 0 | 2 | 11 | 5 | 0 | 12 | 2 | 2 | 69 | 1 | 5.28 | 7.04 | 0.75 | 0.00 | 13.0 | 17.4 | 1.50 | .239 | 2.93 | 6.46 | |||
| 13 | | T. Thompson | 0.00 | 22.2 | 5 | 0 | 0 | 0 | 11 | 0 | 0 | 0 | 27 | 21 | 0 | 11 | 2 | 5 | 100 | 2 | 4.37 | 4.37 | 1.00 | 0.00 | 11.0 | 11.0 | 1.68 | .355 | 8.34 | 10.72 | |||
| 14 | | J. Akers | 0.00 | 14.1 | 4 | 1 | 0 | 1.000 | 0 | 10 | 0 | 0 | 0 | 15 | 11 | 0 | 11 | 2 | 3 | 70 | 0 | 6.28 | 6.91 | 0.91 | 0.00 | 14.3 | 15.7 | 1.81 | .319 | 6.91 | 9.42 | ||
| 15 | | C. Slapnicka | 0.00 | 10.2 | 2 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 2 | 1 | 0 | 3 | 2 | 1 | 36 | 0 | 4.22 | 2.53 | 1.67 | 0.00 | 13.9 | 8.3 | 0.47 | .077 | 0.84 | 1.69 | |||
| 16 | | J. Bushelman | 0.00 | 10.2 | 5 | 1 | 0 | 1.000 | 0 | 5 | 0 | 0 | 0 | 10 | 6 | 0 | 10 | 0 | 3 | 48 | 2 | 4.22 | 8.44 | 0.50 | 0.00 | 10.4 | 20.8 | 1.88 | .303 | 5.06 | 8.44 | ||
| 17 | | J. Baskette | 0.00 | 56.2 | 21 | 2 | 2 | .500 | 0 | 23 | 0 | 0 | 1 | 49 | 20 | 1 | 19 | 1 | 21 | 232 | 3 | 3.65 | 3.02 | 1.21 | 0.16 | 9.9 | 8.2 | 1.20 | .255 | 3.18 | 7.78 | ||
| 18 | | J. Swindell | 0.00 | 9.1 | 3 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 12 | 5 | 0 | 3 | 1 | 3 | 47 | 1 | 4.82 | 2.89 | 1.67 | 0.00 | 10.6 | 6.4 | 1.61 | .316 | 4.82 | 11.57 | |||
| 19 | | J. Reis | 0.00 | 9.1 | 3 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 5 | 3 | 0 | 8 | 0 | 2 | 40 | 0 | 3.86 | 7.71 | 0.50 | 0.00 | 10.0 | 20.0 | 1.39 | .179 | 2.89 | 4.82 | |||
| 20 | | B. Hall | 0.00 | 16.0 | 6 | 0 | 1 | .000 | 0 | 7 | 0 | 0 | 0 | 11 | 6 | 0 | 11 | 1 | 5 | 70 | 0 | 3.94 | 6.19 | 0.64 | 0.00 | 10.0 | 15.7 | 1.38 | .216 | 3.38 | 6.19 | ||
| 21 | | J. Killilay | 0.00 | 30.0 | 7 | 2 | 0 | 1.000 | 0 | 12 | 0 | 0 | 0 | 24 | 9 | 0 | 16 | 4 | 5 | 118 | 1 | 3.60 | 4.80 | 0.75 | 0.00 | 10.2 | 13.6 | 1.33 | .279 | 2.70 | 7.20 | ||
| 22 | | J. Nagle | 0.00 | 32.0 | 9 | 4 | 0 | 1.000 | 0 | 17 | 0 | 0 | 1 | 31 | 12 | 2 | 7 | 0 | 7 | 126 | 1 | 4.78 | 1.97 | 2.43 | 0.56 | 13.5 | 5.6 | 1.19 | .290 | 3.38 | 8.72 | ||
| 23 | | T. Covington | 0.00 | 49.0 | 16 | 2 | 0 | 1.000 | 0 | 21 | 0 | 0 | 0 | 53 | 27 | 1 | 21 | 6 | 7 | 210 | 3 | 3.86 | 3.86 | 1.00 | 0.18 | 10.0 | 10.0 | 1.51 | .323 | 4.96 | 9.73 | ||
| 24 | | F. Sherry | 0.00 | 35.1 | 7 | 0 | 1 | .000 | 0 | 16 | 0 | 0 | 0 | 36 | 21 | 1 | 9 | 0 | 6 | 144 | 0 | 4.08 | 2.29 | 1.78 | 0.25 | 11.1 | 6.3 | 1.27 | .297 | 5.35 | 9.17 | ||
| 25 | | L. Russell | 0.00 | 31.2 | 8 | 0 | 2 | .000 | 0 | 9 | 0 | 0 | 0 | 37 | 35 | 2 | 20 | 4 | 4 | 149 | 2 | 2.56 | 5.68 | 0.45 | 0.57 | 6.0 | 13.4 | 1.80 | .307 | 9.95 | 10.52 | ||
StatMuse has game-level data for ERA and innings pitched going back to the 1901 season.
Some of the information used here was obtained free of charge from Retrosheet.
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AVG
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MLB 2025 Pitching Leaders
MLB Fantasy 2025
MLB 2025 Betting
MLB 2025 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Phillies - y | 96 | 66 | .593 | |
83 | 79 | .512 | 13.0 | |
79 | 83 | .488 | 17.0 | |
76 | 86 | .469 | 20.0 | |
66 | 96 | .407 | 30.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 97 | 65 | .599 | |
 Cubs - w | 92 | 70 | .568 | 5.0 |
 Reds - w | 83 | 79 | .512 | 14.0 |
78 | 84 | .481 | 19.0 | |
71 | 91 | .438 | 26.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 93 | 69 | .574 | |
 Padres - w | 90 | 72 | .556 | 3.0 |
81 | 81 | .500 | 12.0 | |
80 | 82 | .494 | 13.0 | |
43 | 119 | .265 | 50.0 |
Marlins
Braves
Nationals
Giants
Diamondbacks
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Blue Jays - y | 94 | 68 | .580 | |
 Yankees - w | 94 | 68 | .580 | |
 Red Sox - w | 89 | 73 | .549 | 5.0 |
77 | 85 | .475 | 17.0 | |
75 | 87 | .463 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 88 | 74 | .543 | |
 Tigers - w | 87 | 75 | .537 | 1.0 |
82 | 80 | .506 | 6.0 | |
70 | 92 | .432 | 18.0 | |
60 | 102 | .370 | 28.0 | |
| AL West | W | L | PCT | GB |
 Mariners - y | 90 | 72 | .556 | |
87 | 75 | .537 | 3.0 | |
81 | 81 | .500 | 9.0 | |
76 | 86 | .469 | 14.0 | |
72 | 90 | .444 | 18.0 |
Orioles
Royals
Twins
White Sox
Astros
Rangers
Athletics
Angels
