Since 2010, 22 pitchers are tied for the lowest ERA for the Mariners with 1.0+ inning pitched in a season, with an ERA of 0.00. The first three are José Castillo, Jhonathan Díaz and Miles Mastrobuoni in 2025.
| NAME | ERA | IP | SEASON | TM | 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 | ERA- | FIP | FIP- | H/9 | PRAA | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 |  | J. Castillo | 0.00 | 3.0 | 2025 | 3 | 1 | 0 | 1.000 | 0 | 1 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 2 | 0 | 1 | 1 | 13 | 0 | 3.00 | 6.00 | 0.50 | 0.00 | 7.7 | 15.4 | 1.67 | .300 | 3.00 | 0 | 4.46 | 111 | 9.00 | -0.2 | |
| 2 | | J. Díaz | 0.00 | 1.1 | 2025 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 5 | 0 | 6.75 | 0.00 | 0.00 | 20.0 | 0.0 | 0.75 | .250 | 0.00 | 0 | 1.63 | 41 | 6.75 | 0.4 | |||
| 3 | | M. Mastrobuoni | 0.00 | 1.0 | 2025 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 6 | 0 | 0.00 | 18.00 | 0.00 | 0.00 | 0.0 | 33.3 | 3.00 | .250 | 0.00 | 0 | 9.13 | 228 | 9.00 | -0.6 | ||
| 4 | | L. Rivas | 0.00 | 1.0 | 2025 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 6 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 16.7 | 4.00 | .600 | 0.00 | 0 | 6.13 | 153 | 27.00 | -0.2 | ||
| 5 | | L. Rivas | 0.00 | 2.0 | 2024 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 9 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 1.00 | .222 | 4.50 | 0 | 3.16 | 81 | 9.00 | 0.2 | |||
| 6 | | R. Ryan | 0.00 | 1.0 | 2023 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 18.00 | 9.00 | 2.00 | 0.00 | 50.0 | 25.0 | 1.00 | .000 | 0.00 | 0 | 2.25 | 55 | 0.00 | 0.2 | ||
| 7 | | E. McGee | 0.00 | 6.2 | 2023 | 1 | 0 | 0 | 1 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 22 | 0 | 2.70 | 1.35 | 2.00 | 0.00 | 9.1 | 4.5 | 0.30 | .053 | 0.00 | 0 | 3.10 | 75 | 1.35 | 0.8 | ||
| 8 | | P. Berroa | 0.00 | 1.2 | 2023 | 2 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 8 | 1 | 16.20 | 16.20 | 1.00 | 0.00 | 37.5 | 37.5 | 1.80 | .000 | 0.00 | 0 | 5.05 | 123 | 0.00 | -0.2 | ||
| 9 | | K. Giles | 0.00 | 4.1 | 2022 | 5 | 0 | 0 | 0 | 6 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 3 | 0 | 18 | 1 | 12.46 | 8.31 | 1.50 | 0.00 | 33.3 | 22.2 | 1.15 | .125 | 0.00 | 0 | 3.11 | 81 | 2.08 | 0.3 | ||
| 10 | | R. O'Brien | 0.00 | 1.0 | 2022 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 5 | 0 | 9.00 | 9.00 | 1.00 | 0.00 | 20.0 | 20.0 | 2.00 | .333 | 0.00 | 0 | 4.11 | 107 | 9.00 | 0 | ||
| 11 | | D. Tapia | 0.00 | 2.0 | 2021 | 2 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 4 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 11 | 0 | 4.50 | 4.50 | 1.00 | 0.00 | 9.1 | 9.1 | 2.50 | .444 | 0.00 | 0 | 3.66 | 88 | 18.00 | 0.1 | ||
| 12 | | A. Warren | 0.00 | 5.1 | 2019 | 6 | 1 | 0 | 1.000 | 0 | 5 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 2 | 0 | 2 | 0 | 21 | 1 | 8.44 | 3.38 | 2.50 | 0.00 | 23.8 | 9.5 | 0.75 | .143 | 0.00 | 0 | 2.45 | 55 | 3.38 | 1.2 | |
| 13 | | R. Whalen | 0.00 | 4.0 | 2018 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 14 | 0 | 0.00 | 2.25 | 0.00 | 0.00 | 0.0 | 7.1 | 0.50 | .077 | 0.00 | 0 | 3.91 | 93 | 2.25 | 0.1 | ||
| 14 | | T. Cloyd | 0.00 | 1.0 | 2017 | 1 | 1 | 0 | 1.000 | 0 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 4 | 0 | 9.00 | 0.00 | 0.00 | 25.0 | 0.0 | 2.00 | .667 | 0.00 | 0 | 1.15 | 27 | 18.00 | 0.4 | ||
| 15 | | Z. Curtis | 0.00 | 4.2 | 2017 | 3 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 3 | 1 | 1 | 2 | 2 | 0 | 21 | 2 | 3.86 | 1.93 | 2.00 | 1.93 | 9.5 | 4.8 | 0.86 | .133 | 5.79 | 0 | 7.01 | 163 | 5.79 | -1.4 | ||
| 16 | | T. Vieira | 0.00 | 1.0 | 2017 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 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 | 1.15 | 27 | 0.00 | 0.4 | |||
| 17 | | B. Parker | 0.00 | 1.0 | 2016 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 5 | 0 | 0.00 | 9.00 | 0.00 | 0.00 | 0.0 | 20.0 | 2.00 | .250 | 0.00 | 0 | 6.14 | 148 | 9.00 | -0.2 | ||
| 18 | | L. Sardinas | 0.00 | 1.0 | 2016 | 1 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 1 | 0 | 3 | 0 | 0.00 | 0.00 | 0.00 | 0.0 | 0.0 | 0.00 | .000 | 0.00 | 0 | 3.14 | 76 | 0.00 | 0.1 | |||
| 19 | | E. Scribner | 0.00 | 14.0 | 2016 | 12 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 5 | 0 | 0 | 0 | 2 | 1 | 0 | 1 | 49 | 0 | 9.64 | 1.29 | 7.50 | 0.00 | 30.6 | 4.1 | 0.50 | .161 | 0.00 | 0 | 1.64 | 39 | 3.21 | 4 | ||
| 20 | | L. Luetge | 0.00 | 2.1 | 2015 | 1 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | 0 | 1 | 0 | 8 | 0 | 7.71 | 7.71 | 1.00 | 0.00 | 25.0 | 25.0 | 0.86 | .000 | 0.00 | 0 | 3.98 | 101 | 0.00 | 0 | ||
| 21 | | S. Pryor | 0.00 | 1.2 | 2014 | 1 | 0 | 0 | 0 | 1 | 0 | 0 | 0 | 1 | 0 | 1 | 0 | 2 | 0 | 0 | 0 | 8 | 1 | 5.40 | 10.80 | 0.50 | 0.00 | 12.5 | 25.0 | 1.80 | .200 | 5.40 | 0 | 5.53 | 149 | 5.40 | -0.3 | ||
| 22 | | C. Smith | 0.00 | 8.1 | 2014 | 9 | 1 | 0 | 1.000 | 0 | 10 | 0 | 0 | 0 | 2 | 0 | 0 | 0 | 3 | 0 | 1 | 0 | 29 | 0 | 10.80 | 3.24 | 3.33 | 0.00 | 34.5 | 10.3 | 0.60 | .125 | 0.00 | 0 | 1.81 | 49 | 2.16 | 1.8 | |
| 23 | | S. Pryor | 0.00 | 7.1 | 2013 | 7 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 3 | 0 | 0 | 0 | 1 | 0 | 2 | 0 | 26 | 0 | 8.59 | 1.23 | 7.00 | 0.00 | 26.9 | 3.8 | 0.55 | .167 | 0.00 | 0 | 1.54 | 40 | 3.68 | 1.9 | ||
| 24 | | S. Kelley | 0.00 | 12.2 | 2011 | 10 | 0 | 0 | 0 | 10 | 0 | 0 | 0 | 7 | 0 | 0 | 0 | 3 | 0 | 2 | 1 | 47 | 0 | 7.11 | 2.13 | 3.33 | 0.00 | 21.3 | 6.4 | 0.79 | .206 | 0.00 | 0 | 2.15 | 55 | 4.97 | 2.6 | ||
| 25 | | M. Brash | 0.54 | 16.2 | 2026 | 20 | 3 | 0 | 1.000 | 0 | 15 | 0 | 0 | 0 | 8 | 1 | 2 | 0 | 6 | 3 | 1 | 1 | 64 | 1 | 8.10 | 3.24 | 2.50 | 0.00 | 23.4 | 9.4 | 0.84 | .200 | 1.08 | 14 | 2.91 | 73 | 4.32 | 2 | |
SEAMore MLB News
Alex Bregman's huge day at the plate in relocated season finale powers Cubs to 6-2 win over Red Sox
Astros win AL West with 81-81 record, worst for first-place team, beat A's 9-0
Call's RBI double, Pages' 3-run HR in 10th lift Dodgers to win No. 100, 5-1 over Giants
Alcantara gets another save, Hernández, Conine homer as Marlins beat playoff-bound Braves 5-3
Gilbert fans 8 in 4 no-hit innings, Mariners strike out 12 overall in 7-3 win over the Angels
Misiorowski continues Cy Young Award push and Turang gets 100th RBI as Brewers beat Cardinals 6-4
More Mariners Stats
Team Batting Leaders 
HR
26
Arozarena
RBI
79
Arozarena
AVG
.281
Arozarena
Team Pitching Leaders 
W
12
Woo
K
205
Gilbert
ERA
3.57
Hancock
Team Rankings
HR
182
16th
R
664
28th
SO
1,392
12th
ERA
4.20
19th
Rangers
Athletics
Angels
MLB 2026 Batting Leaders
MLB 2026 Pitching Leaders
MLB Fantasy 2026
MLB 2026 Betting
MLB 2026 Standings
| NL East | W | L | PCT | GB |
|---|---|---|---|---|
 Braves - y | 94 | 68 | .580 | |
 Phillies - w | 88 | 74 | .543 | 6.0 |
80 | 82 | .494 | 14.0 | |
77 | 85 | .475 | 17.0 | |
74 | 88 | .457 | 20.0 | |
| NL Central | W | L | PCT | GB |
 Brewers - y | 103 | 59 | .636 | |
 Cubs - w | 89 | 73 | .549 | 14.0 |
82 | 80 | .506 | 21.0 | |
77 | 85 | .475 | 26.0 | |
75 | 87 | .463 | 28.0 | |
| NL West | W | L | PCT | GB |
 Dodgers - y | 100 | 62 | .617 | |
 Padres - w | 91 | 71 | .562 | 9.0 |
86 | 76 | .531 | 14.0 | |
65 | 97 | .401 | 35.0 | |
58 | 104 | .358 | 42.0 |
Marlins
Nationals
Mets
Pirates
Cardinals
Reds
Diamondbacks
Giants
Rockies| AL East | W | L | PCT | GB |
|---|---|---|---|---|
 Rays - y | 98 | 64 | .605 | |
 Yankees - w | 93 | 68 | .578 | 4.5 |
 Red Sox - w | 87 | 75 | .537 | 11.0 |
79 | 82 | .491 | 18.5 | |
79 | 83 | .488 | 19.0 | |
| AL Central | W | L | PCT | GB |
 Guardians - y | 85 | 77 | .525 | |
 White Sox - w | 84 | 78 | .519 | 1.0 |
77 | 85 | .475 | 8.0 | |
76 | 86 | .469 | 9.0 | |
69 | 93 | .426 | 16.0 | |
| AL West | W | L | PCT | GB |
 Astros - y | 81 | 81 | .500 | |
80 | 82 | .494 | 1.0 | |
76 | 86 | .469 | 5.0 | |
64 | 98 | .395 | 17.0 | |
62 | 100 | .383 | 19.0 |
Orioles
Blue Jays
Twins
Tigers
Royals