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Seranthony Dominguez
RP · 
Seattle Mariners · #58
Bats/ThrowsR/R
Height6' 1"
Weight225 lbs
BirthplaceEsperanza, Dominican Republic
MLB Debut2018
🪪Bio
Bats/ThrowsR/R
Height6' 1"
Weight225 lbs
BirthplaceEsperanza, Dominican Republic
MLB Debut2018
📊Season Stats (2026)
ERA4.17
W-L5-3
IP54.0
K58
WHIP1.31
SV12
Full Stat Line
G60
GS0
QS0
HLD7
H40
ER25
HR9
BB31
K/99.67
WAR0.59
🤚Career Splits by Handedness
vs Left-Handed Batters
AVG.200
OBP.330
SLG.325
OPS.655
vs Right-Handed Batters
AVG.216
OBP.303
SLG.423
OPS.725
Career totals from real plate-appearance data — lower OPS allowed is better for a pitcher.
⚔️This Season vs. Each Opponent
| Opponent | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
vs. KC
|
3.60 | 5.0 | 7 | 2 | .167 |
vs. TOR
|
1.93 | 4.2 | 3 | 3 | .118 |
vs. DET
|
10.38 | 4.1 | 3 | 2 | .400 |
vs. OAK
|
0.00 | 4.1 | 3 | 3 | .077 |
vs. BOS
|
0.00 | 4.0 | 3 | 2 | .083 |
vs. NYY
|
0.00 | 3.1 | 1 | 2 | .111 |
vs. CHC
|
6.00 | 3.0 | 5 | 1 | .091 |
vs. TB
|
9.00 | 3.0 | 6 | 2 | .308 |
vs. HOU
|
3.38 | 2.2 | 3 | 2 | .333 |
vs. PHI
|
0.00 | 2.1 | 3 | 1 | .000 |
vs. ATL
|
0.00 | 2.0 | 0 | 1 | .000 |
vs. LAA
|
0.00 | 2.0 | 2 | 1 | .000 |
vs. MIL
|
18.00 | 2.0 | 0 | 2 | .500 |
|
vs. SEA
|
0.00 | 2.0 | 3 | 1 | .250 |
vs. WSH
|
4.50 | 2.0 | 2 | 0 | .286 |
vs. ARI
|
0.00 | 1.0 | 2 | 0 | .000 |
vs. LAD
|
9.00 | 1.0 | 2 | 2 | .250 |
vs. MIN
|
0.00 | 1.0 | 2 | 0 | .250 |
vs. SF
|
0.00 | 1.0 | 2 | 0 | .250 |
vs. TEX
|
9.00 | 1.0 | 2 | 0 | .250 |
vs. CLE
|
54.00 | 0.2 | 2 | 3 | .500 |
vs. SD
|
0.00 | 0.2 | 1 | 0 | .000 |
🏟️This Season at Each Ballpark
| Ballpark | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Total | 4.25 | 53.0 | 57 | 30 | .208 |
| U.S. Cellular Field | 3.91 | 25.1 | 29 | 14 | .207 |
| Safeco Field | 4.91 | 7.1 | 9 | 3 | .250 |
| Rogers Centre | 3.86 | 2.1 | 0 | 2 | .125 |
| Comerica Park | 4.50 | 2.0 | 1 | 0 | .444 |
| Fenway Park | 0.00 | 2.0 | 0 | 0 | .000 |
| Kauffman Stadium | 0.00 | 2.0 | 4 | 2 | .000 |
| Minute Maid Park | 6.75 | 1.1 | 1 | 0 | .333 |
| Yankee Stadium | 0.00 | 1.1 | 0 | 1 | .000 |
| AT&T Park | 0.00 | 1.0 | 2 | 0 | .250 |
| Chase Field | 0.00 | 1.0 | 2 | 0 | .000 |
| Tropicana Field | 0.00 | 1.0 | 2 | 0 | .000 |
| PETCO Park | 0.00 | 0.2 | 1 | 0 | .000 |
| Citizens Bank Park | 0.00 | 0.1 | 1 | 1 | .000 |
| Progressive Field | 54.00 | 0.1 | 1 | 2 | .000 |
📅By Month & Recent Form
| Split | ERA | IP | K | BB | Opp AVG |
|---|---|---|---|---|---|
| Last 7 Days | 0.00 | 2.1 | 0 | 0 | .143 |
| Last 15 Days | 1.69 | 5.1 | 0 | 2 | .118 |
| Last 30 Days | 2.84 | 12.2 | 7 | 4 | .146 |
| March | 13.50 | 1.1 | 0 | 1 | .429 |
| April | 3.09 | 11.2 | 16 | 8 | .128 |
| May | 3.72 | 9.2 | 12 | 2 | .189 |
| June | 5.40 | 6.2 | 7 | 5 | .308 |
| July | 3.38 | 8.0 | 10 | 7 | .185 |
| August | 5.40 | 13.1 | 12 | 7 | .224 |
| September | 0.00 | 2.1 | 0 | 0 | .143 |
🎯Pitch Arsenal (2026)
| Type | Pitches | Usage% | Zone% | Chase% | Whiff% | BA | wOBA | xwOBA |
|---|---|---|---|---|---|---|---|---|
| 4-Seam Fastball | 440 | 43.5% | 42.3% | 27.7% | 21.7% | .230 | .368 | .334 |
| Sweeper | 279 | 27.6% | 26.9% | 42.2% | 33.7% | .189 | .326 | .207 |
| Sinker | 162 | 16.0% | 35.8% | 25.4% | 13.6% | .281 | .370 | .428 |
| Splitter | 116 | 11.5% | 20.7% | 44.7% | 50.0% | .071 | .037 | .122 |
| Curveball | 15 | 1.5% | 0.0% | — | — | .000 | — | — |
🌀Pitch Movement (2026)
| Type | # | Velo | Spin | IVB | H-Break | Ext |
|---|---|---|---|---|---|---|
| 4-Seam Fastball | 296 | 97.2 | 2,336 | +13.8" | +0.4" | 6.4 |
| Sweeper | 175 | 84.9 | 2,429 | +4.0" | -0.9" | 6.4 |
| Sinker | 105 | 97.4 | 2,208 | +9.4" | +1.3" | 6.4 |
| Splitter | 80 | 85.9 | 978 | +2.3" | +0.8" | 6.5 |
IVB = induced vertical break (gravity removed) · H-Break = horizontal movement · Ext = release extension in feet.
📋Recent Game Log
| Date | Opp | Score | IP | H | ER | BB | K | ERA | PC | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|
| L | Friday, September 11, 2026 |
OAK
|
5-6 | 1.2 | 1 | 0 | 0 | 1 | 4.04 | 25 | — |
| W | Wednesday, September 9, 2026 |
TEX
|
2-3 | 1.0 | 0 | 0 | 1 | 1 | 4.17 | 20 | — |
| L | Friday, September 4, 2026 |
OAK
|
7-6 | 1.1 | 1 | 0 | 0 | 0 | 4.25 | 13 | — |
| W | Wednesday, September 2, 2026 |
BOS
|
8-3 | 1.0 | 0 | 0 | 0 | 0 | 4.35 | 7 | — |
| L | Monday, August 31, 2026 |
BOS
|
8-9 | 1.0 | 0 | 0 | 0 | 0 | 4.44 | 8 | — |
| L | Sunday, August 30, 2026 |
TOR
|
0-7 | 1.0 | 0 | 0 | 1 | 0 | 4.53 | 16 | — |
| L | Friday, August 28, 2026 |
TOR
|
1-8 | 1.0 | 1 | 1 | 1 | 0 | 4.62 | 24 | — |
| W | Monday, August 24, 2026 |
PHI
|
2-9 | 2.0 | 0 | 0 | 0 | 2 | 4.53 | 30 | — |
| W | Saturday, August 22, 2026 |
CHC
|
4-5 | 1.0 | 0 | 0 | 0 | 3 | 4.73 | 15 | — |
| W | Friday, August 21, 2026 |
CHC
|
5-6 | 1.0 | 0 | 0 | 0 | 1 | 4.84 | 14 | W |
👥Team — Seattle Mariners
| Player | Pos | Key Stat |
|---|---|---|
| Josh Naylor | 1B | .265 AVG |
| Cole Young | 2B | .248 AVG |
| Brendan Donovan | 3B | .277 AVG |
| Miles Mastrobuoni | 3B | .192 AVG |
| Leo Rivas | 3B | 63.00 ERA |
| Weston Wilson | 3B | 18.90 ERA |
| Patrick Wisdom | 3B | .106 AVG |
| Mitch Garver | C | .175 AVG |
| Jhonny Pereda | C | 54.00 ERA |
| Cal Raleigh | C | .183 AVG |
| Stuart Fairchild | CF | .158 AVG |
| Julio Rodriguez | CF | .239 AVG |
| Dominic Canzone | DH | .254 AVG |
| Taylor Ward | DH | .225 AVG |
| Connor Joe | First Baseman | .179 AVG |
| Randy Arozarena | LF | .272 AVG |
| Matt Brash | Relief Pitcher | 0.54 ERA |
| Lazaro Montes | RF | .227 AVG |
| Luke Raley | RF | .225 AVG |
| Victor Robles | RF | 27.00 ERA |
| Eduard Bazardo | RP | 3.90 ERA |
| Cooper Criswell | RP | 3.44 ERA |
| Nick Davila | RP | 4.94 ERA |
| Jhonathan Diaz | RP | 6.75 ERA |
| Jose Ferrer | RP | 3.77 ERA |
| Hoby Milner | RP | 4.03 ERA |
| Andres Munoz | RP | 3.98 ERA |
| Michael Rucker | RP | 6.69 ERA |
| Josh Simpson | RP | 9.82 ERA |
| Gabe Speier | RP | 2.61 ERA |
| Troy Taylor | RP | 12.15 ERA |
| Carlos Vargas | RP | 3.38 ERA |
| Cole Wilcox | RP | 4.00 ERA |
| Kade Anderson | SP | 4.29 ERA |
| Logan Gilbert | SP | 3.72 ERA |
| Emerson Hancock | SP | 3.57 ERA |
| George Kirby | SP | 4.18 ERA |
| Bryce Miller | SP | 4.22 ERA |
| Bryan Woo | SP | 4.03 ERA |
| Michael Arroyo | SS | .000 AVG |
| J.P. Crawford | SS | .219 AVG |
| Colt Emerson | SS | .190 AVG |
| Brock Rodden | SS | .226 AVG |
See the Full Analysis
Key Suspects, player props, DFS rankings, and matchup intelligence for Seranthony Dominguez and every MLB game — available in the BlowOutAlert workspace.