← Seattle Mariners
Seranthony Dominguez
Seattle Mariners
RP · #58 · Bats R · Throws R · 6'1" · 225 lb · Age 31 · 8 yrs in MLB
2026 grade
22.2
- Runs prevented
- −1.1
- IP · ERA
- 62.0 · 3.63
- K · BB
- 65 · 31
- Rank
- 160 of 205 relievers
What the grade is made of
Runs each part saves or costs against an average pitcher facing the same batters. Contact counts a quarter for how it turned out, because over a season that's mostly the fielders and luck.
- Walks29 vs 22 avg−2.2
- Strikeouts65 vs 58 avg+2.0
- Home runs allowed9 vs 8 avg−1.6
- Contact allowed (how it turned out counts a quarter)152 vs 167 avg+1.0
- Parks pitched in−0.4
2026 game log: pitching
Game grades need 3 batters faced; starts are ranked against starts, relief outings against relief outings.
| Game | Result | Dec | IP | H | R | ER | BB | K | HR | PC | Grade |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Sat, Sep 26vsLAA | W 8-4 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 15 | 71.4 | |
| Wed, Sep 23vsHOU | W 6-5 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 19 | 52.8 | |
| Sun, Sep 20@COL | W 2-1 | H | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 12 | 60.8 |
| Fri, Sep 18@COL | W 5-4 | 1.1 | 1 | 0 | 0 | 0 | 2 | 0 | 24 | 69.4 | |
| Tue, Sep 15@LAA | L 1-2 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 12 | 83.7 | |
| Sun, Sep 13@ATH | L 7-8 | B | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 | 18 | 27.6 |
| Fri, Sep 11@ATH | L 5-6 | 1.2 | 1 | 0 | 0 | 0 | 1 | 0 | 25 | 90.3 | |
| Wed, Sep 9vsTEX | W 3-2 | H | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 20 | 61.0 |
| Fri, Sep 4vsATH | L 6-7 | 1.1 | 1 | 0 | 0 | 0 | 0 | 0 | 13 | 52.8 | |
| Wed, Sep 2@BOS | W 8-3 | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 7 | 87.3 | |
| Mon, Aug 31@BOS | L 8-9 | H | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 8 | 85.7 |
| Sun, Aug 30@TOR | L 0-7 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 16 | 63.6 | |
| Fri, Aug 28@TOR | L 1-8 | 1.0 | 1 | 1 | 1 | 1 | 0 | 1 | 24 | 15.1 | |
| Mon, Aug 24vsPHI | W 9-2 | 2.0 | 0 | 0 | 0 | 0 | 2 | 0 | 30 | 97.2 | |
| Sat, Aug 22vsCHC | W 5-4 | 1.0 | 0 | 0 | 0 | 0 | 3 | 0 | 15 | 60.8 | |
| Fri, Aug 21vsCHC | W 6-5 | W | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 14 | 70.7 |
| Wed, Aug 19@MIL | W 7-5 | 0.2 | 2 | 2 | 2 | 1 | 0 | 0 | 20 | 13.5 | |
| Sun, Aug 16@HOU | W 3-2 | H | 0.1 | 1 | 0 | 0 | 0 | 1 | 0 | 6 | – |
| Sat, Aug 15@HOU | W 10-5 | 1.0 | 1 | 1 | 1 | 0 | 0 | 0 | 12 | 32.6 | |
| Wed, Aug 12@NYY | L 5-10 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | – | |
| Tue, Aug 11@NYY | L 1-4 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 24 | 50.2 | |
| Sat, Aug 8vsTB | L 2-3 | 0.2 | 1 | 0 | 0 | 0 | 1 | 0 | 14 | 41.2 | |
| Fri, Aug 7vsTB | L 1-2 | 1.0 | 1 | 0 | 0 | 1 | 2 | 0 | 16 | 37.8 | |
| Tue, Aug 4vsDET | L 0-8 | 0.1 | 4 | 4 | 4 | 2 | 0 | 2 | 26 | 0.2 | |
| Sat, Aug 1@TB | L 0-1 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 14 | 81.7 | |
| Thu, Jul 30vsNYY | W 2-1 | W | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 15 | 77.9 |
| Mon, Jul 27vsNYY | L 5-9 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 13 | 44.2 | |
| Sun, Jul 26vsHOU | W 12-3 | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 13 | 55.8 | |
| Fri, Jul 24vsHOU | L 5-9 | 0.1 | 1 | 0 | 0 | 2 | 1 | 0 | 19 | 16.1 | |
| Mon, Jul 20@TEX | W 10-3 | H | 1.0 | 1 | 1 | 1 | 0 | 2 | 1 | 17 | 21.8 |
| Fri, Jul 17@TOR | W 12-4 | 0.1 | 0 | 0 | 0 | 0 | 0 | 0 | 2 | – | |
| Sun, Jul 12vsATH | W 9-1 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 14 | 77.9 | |
| Wed, Jul 8vsBOS | L 0-5 | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 13 | 50.2 | |
| Tue, Jul 7vsBOS | L 1-8 | 1.0 | 1 | 0 | 0 | 1 | 2 | 0 | 19 | 39.1 | |
| Fri, Jul 3@CLE | L 3-4 | H | 0.1 | 0 | 2 | 2 | 2 | 1 | 0 | 16 | 28.6 |
| Sun, Jun 28vsKC | L 4-5 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 18 | 55.4 | |
| Mon, Jun 22vsCLE | W 6-5 | B | 0.1 | 2 | 2 | 2 | 1 | 1 | 0 | 22 | 9.7 |
| Sun, Jun 21@DET | L 4-5 | B | 1.0 | 3 | 1 | 1 | 0 | 1 | 0 | 27 | 22.0 |
| Fri, Jun 19@DET | L 3-4 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 18 | 46.4 | |
| Sun, Jun 14vsLAD | W 6-4 | S | 1.0 | 1 | 1 | 1 | 2 | 2 | 0 | 33 | 20.8 |
| Wed, Jun 10vsATL | W 2-1 | H | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 74.1 |
| Tue, Jun 9vsATL | W 6-5 | 1.0 | 0 | 0 | 0 | 1 | 0 | 0 | 13 | 49.7 | |
| Fri, Jun 5@PHI | L 6-8 | 0.1 | 0 | 0 | 0 | 1 | 1 | 0 | 11 | – | |
| Sat, May 30vsDET | W 7-1 | H | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 15 | 72.8 |
| Fri, May 29vsDET | W 4-3 | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 10 | 72.3 | |
| Mon, May 25vsMIN | W 3-1 | S | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 19 | 53.3 |
| Sun, May 24@SF | L 5-8 | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 15 | 53.1 | |
| Sun, May 17vsCHC | W 9-8 | B | 1.0 | 1 | 3 | 2 | 1 | 1 | 1 | 32 | 19.1 |
| Wed, May 13vsKC | W 6-5 | S | 1.0 | 2 | 2 | 2 | 0 | 1 | 1 | 14 | 8.6 |
| Tue, May 12vsKC | W 6-5 | W | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 10 | 72.8 |
| Sun, May 10vsSEA | W 2-1 | S | 1.0 | 2 | 0 | 0 | 1 | 1 | 0 | 23 | 25.1 |
| Fri, May 8vsSEA | L 8-12 | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 14 | 73.5 | |
| Sat, May 2@SD | W 4-0 | S | 0.2 | 0 | 0 | 0 | 0 | 1 | 0 | 6 | – |
| Wed, Apr 29vsLAA | W 3-2 | W | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 16 | 74.7 |
| Tue, Apr 28vsLAA | W 5-2 | S | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 12 | 49.8 |
| Sun, Apr 26vsWSH | L 1-2 | L | 1.0 | 1 | 2 | 1 | 0 | 0 | 1 | 18 | 21.8 |
| Fri, Apr 24vsWSH | W 5-4 | S | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 18 | 41.3 |
| Thu, Apr 23@ARI | W 4-1 | S | 1.0 | 0 | 0 | 0 | 0 | 2 | 0 | 12 | 77.9 |
| Sun, Apr 19@ATH | W 7-4 | S | 1.0 | 0 | 0 | 0 | 1 | 1 | 0 | 19 | 47.0 |
| Sat, Apr 18@ATH | L 6-7 | 1.0 | 0 | 0 | 0 | 2 | 1 | 0 | 16 | 64.5 | |
| Thu, Apr 16vsTB | L 3-5 | L | 0.1 | 2 | 3 | 3 | 1 | 1 | 1 | 32 | 2.6 |
| Sun, Apr 12@KC | W 6-5 | S | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 15 | 66.1 |
| Thu, Apr 9@KC | W 2-0 | S | 1.0 | 0 | 0 | 0 | 1 | 2 | 0 | 15 | 66.1 |
| Sat, Apr 4vsTOR | W 6-3 | S | 1.0 | 1 | 0 | 0 | 1 | 1 | 0 | 24 | 38.9 |
| Fri, Apr 3vsTOR | W 5-4 | W | 1.1 | 0 | 1 | 0 | 0 | 2 | 0 | 22 | 96.4 |
| Sun, Mar 29@MIL | L 7-9 | L | 0.1 | 2 | 2 | 2 | 1 | 0 | 1 | 19 | 4.1 |
| Sat, Mar 28@MIL | L 1-6 | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 13 | 55.2 |
Scores, box scores and play-by-play from ESPN. The run values and park factors behind the grades were worked out from Retrosheet's play-by-play: the information used here was obtained free of charge from and is copyrighted by Retrosheet. Interested parties may contact Retrosheet at www.retrosheet.org.