MLB
Seranthony Dominguez

Seranthony Dominguez

RP • Seattle Mariners Proj Rank N/A Actual 158 238 ADP • Trade Value
IP ERA W-L HLD SV K/BB K/9 WHIP FSP
57.1 3.92 5-3 8 12 65/31 10.2 1.34 4.62
Compared to same point last season
55.23.724-420279/3612.81.44

Seranthony Dominguez | Fantasy Outlook

Seranthony Domínguez delivers dominant scoreless relief while eyeing potential save opportunities

Domínguez has been nearly untouchable out of the bullpen lately, firing 6.1 scoreless innings with six strikeouts and a 0.95 WHIP over his last 14 days. The third-place Mariners sit at 73-83, but their bullpen hierarchy is suddenly in flux with primary closer Andrés Muñoz nursing a knee injury. Operating as a trusted late-inning setup option, Domínguez is positioned to absorb ninth-inning duties should Muñoz require extended rest.

While his immaculate 0.63 ERA over the past 30 days is due for slight regression toward our 3.90 projected ERA baseline, his recent command gains are very real. Domínguez has issued just one walk over his last six appearances, a dramatic step forward from his 1.38 season WHIP. Even if his ratios normalize marginally, his strikeout ability and suppressed hard contact make this late-season surge dependable.

Seattle wraps up the week with six consecutive home games, hosting Houston for two contests before welcoming the Angels for a four-game set. With multiple close games expected and uncertainty surrounding the ninth inning, Domínguez offers immediate value for fantasy managers chasing holds, ratios, and speculative saves. Stream.

Updated 11 days ago

Seranthony Dominguez Fantasy

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DATE OPP INN PC K WLK ER DEC ERA WHIP PTS
09/26 LAA 1.0 15 1 0 0 N/A 3.92 1.34 3
09/23 HOU 1.0 19 1 0 0 N/A 3.99 1.37 3
09/20 @COL 1.0 12 1 0 0 HOLD 4.07 1.37 3
09/18 @COL 1.1 24 2 0 0 N/A 4.14 1.38 4
09/15 @LAA 1.0 12 1 0 0 N/A 4.25 1.40 3
09/13 @ATH 1.0 18 0 0 0 N/A 4.33 1.42 1
09/11 @ATH 1.2 25 1 0 0 N/A 4.41 1.41 4
09/09 TEX 1.0 20 1 1 0 HOLD 4.35 1.37 3
09/04 ATH 1.1 13 0 0 0 N/A 4.44 1.38 2
09/02 @BOS 1.0 7 0 0 0 N/A 4.56 1.40 2
08/31 @BOS 1.0 8 0 0 0 HOLD 4.66 1.43 2
08/30 @TOR 1.0 16 0 1 0 N/A 4.75 1.46 2
08/28 @TOR 1.0 24 0 1 1 N/A 4.86 1.47 0
08/24 PHI 2.0 30 2 0 0 N/A 4.76 1.46 6
08/22 CHC 1.0 15 3 0 0 N/A 4.98 1.52 5
08/21 CHC 1.0 14 1 0 0 WIN 5.10 1.56 8
08/19 @MIL 0.2 20 0 1 2 N/A 5.23 1.60 -2
08/16 @HOU 0.1 6 1 0 0 HOLD 4.87 1.55 1
08/15 @HOU 1.0 12 0 0 1 N/A 4.91 1.54 1
08/12 @NYY 0.1 2 0 0 0 N/A 4.81 1.55 1
08/11 @NYY 1.0 24 0 1 0 N/A 4.85 1.56 2
08/08 TB 0.2 14 1 0 0 N/A 4.97 1.58 2
08/07 TB 1.0 16 2 1 0 N/A 5.06 1.58 3
08/04 DET 0.1 26 0 2 4 N/A 5.20 1.57 -6
08/01 @TB 1.0 14 2 0 0 N/A 4.25 1.42 4
07/30 NYY 1.0 15 1 1 0 WIN 4.37 1.46 8
07/27 NYY 1.0 13 0 0 0 N/A 4.50 1.47 2
07/26 HOU 1.0 13 1 0 0 N/A 4.64 1.48 3
07/24 HOU 0.1 19 1 2 0 N/A 4.78 1.50 0
07/20 @TEX 1.0 17 2 0 1 HOLD 4.50 1.32 3
07/17 @TOR 0.1 2 0 0 0 N/A 4.36 1.33 1
07/12 ATH 1.0 14 1 0 0 N/A 4.41 1.35 3
07/08 BOS 1.0 13 1 1 0 N/A 4.55 1.39 3
07/07 BOS 1.0 19 2 1 0 N/A 4.70 1.40 3
07/03 @CLE 0.1 16 1 2 2 HOLD 4.85 1.38 -1
06/28 KC 1.0 18 2 0 0 N/A 4.30 1.33 4
06/22 CLE 0.1 22 1 1 2 N/A 4.45 1.34 -2
06/21 @DET 1.0 27 1 0 1 N/A 3.86 1.25 1
06/19 @DET 1.0 18 0 0 0 N/A 3.67 1.19 2
06/14 LAD 1.0 33 2 2 1 SAVE 3.81 1.19 7
06/10 ATL 1.0 14 0 0 0 HOLD 3.60 1.12 2
06/09 ATL 1.0 13 0 1 0 N/A 3.75 1.17 2
06/05 @PHI 0.1 11 1 1 0 N/A 3.91 1.17 1
05/30 DET 1.0 15 1 0 0 HOLD 3.97 1.15 3
05/29 DET 1.0 10 1 0 0 N/A 4.15 1.20 3
05/25 MIN 1.0 19 2 0 0 SAVE 4.35 1.26 9
05/24 @SF 1.0 15 2 0 0 N/A 4.58 1.27 4
05/17 CHC 1.0 32 1 1 2 N/A 4.82 1.29 0
05/13 KC 1.0 14 1 0 2 SAVE 4.08 1.25 5
05/12 KC 1.0 10 0 0 0 WIN 3.24 1.20 7
05/10 SEA 1.0 23 1 1 0 SAVE 3.45 1.28 7
05/08 SEA 1.0 14 2 0 0 N/A 3.68 1.16 4
05/02 @SD 0.2 6 1 0 0 SAVE 3.95 1.24 7
04/29 LAA 1.0 16 1 0 0 WIN 4.15 1.31 8
04/28 LAA 1.0 12 1 1 0 SAVE 4.50 1.42 8
04/26 WAS 1.0 18 0 0 1 LOSS 4.91 1.45 -5
04/24 WAS 1.0 18 2 0 0 SAVE 4.50 1.50 9
04/23 @ARI 1.0 12 2 0 0 SAVE 5.00 1.56 9
04/19 @ATH 1.0 19 1 1 0 SAVE 5.63 1.75 8
04/18 @ATH 1.0 16 1 2 0 N/A 6.43 1.86 2
04/16 TB 0.1 32 1 1 3 LOSS 7.50 1.83 -8
04/12 @KC 1.0 15 2 1 0 SAVE 3.18 1.41 9
04/09 @KC 1.0 15 2 1 0 SAVE 3.86 1.50 9
04/04 TOR 1.0 24 1 1 0 SAVE 4.91 1.64 7
04/03 TOR 1.1 22 2 0 0 WIN 6.75 1.50 10
03/29 @MIL 0.1 19 0 1 2 LOSS 13.50 3.00 -8
03/28 @MIL 1.0 13 0 0 0 N/A 0.00 1.00 2
Totals: 57.11112653125 196
Fantasy Chart Loading...
YEAR TM APP INN PC K WLK SV W-L ERA WHIP K/9 PTS
2018 PHI 53 53.1 931 74 22 16 2-5 3.21 1.01 12.5 264
2019 PHI 27 22.1 464 29 12 0 3-0 4.43 1.61 11.7 61
2021 PHI 1 1.0 14 1 0 0 0-0 0 0 9 3
2022 PHI 61 61.2 971 78 22 10 8-4 2.48 0.99 11.4 221
2023 PHI 63 48.1 948 55 25 2 5-5 3.91 1.63 10.2 115
2024 PHI 65 55.2 1084 70 21 11 3-4 4.53 1.31 11.3 176
2025 BAL 79 64.2 1301 89 47 2 6-4 3.76 1.48 12.4 182
2026 CHW 67 57.1 1112 65 31 12 5-3 3.92 1.34 10.2 196
3-YEAR AVG 69 55 1111 71 31 5 5-4 3.99 1.47 11.3 158
Career 416 357.1 6825 461 180 0 0-0 3.73 1.33 11.6

Dominguez Projection

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ERA WHIP QS WINS SO K/BB K/9 IP LOSSES PC FPTS
0 0 0 0 0 0 0 0.0 0 0 0
ERA WHIP QS WINS SO K/BB K/9 IP LOSSES PC FPTS
0 0 0 0 0 0 0 0.0 0 0 0
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OWN START TRENDS

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Depth Chart

Seattle Mariners

Roster Breakdown
NAME OWN START
Cal Raleigh 93% 86%
NAME OWN START
Josh Naylor 89% 75%
Brendan Donovan 36% 0%
NAME OWN START
J.P. Crawford 23% 18%
Cole Young 16% 14%
Colt Emerson 9% 2%
NAME OWN START
Randy Arozarena 100% 95%
Julio Rodriguez 98% 77%
Dominic Canzone 45% 43%
Taylor Ward 39% 32%
Lazaro Montes 14% 7%
Luke Raley 11% 0%
Victor Labrada 5% 0%
NAME OWN START
Logan Gilbert 100% 82%
Bryan Woo 95% 73%
George Kirby 70% 36%
Kade Anderson 64% 39%
Emerson Hancock 57% 9%
Bryce Miller 50% 36%
Ryan Sloan 7% 0%
NAME OWN START
Andres Munoz 86% 75%
Seranthony Dominguez 23% 20%
Gabe Speier 9% 5%
Eduard Bazardo 7% 2%
Matt Brash 5% 0%

Team Injuries

PLAYERSTATUSNOTES
Logan Evans
#23 · SP
Out60-Day ILElbow
Evans underwent surgery for a torn UCL in his right arm and has been placed on the 60-day injured list. He will miss the 2026 season.
INJ SINCE: Jan 30
Matt Brash
#47 · RP
Out60-Day ILLat
Brash is dealing with a right lat strain and has been placed on the 60-day injured list.
INJ SINCE: Jun 10
Nick Davila
#82 · RP
Out60-Day ILNeck
Davila is dealing with a SC joint sprain and has been placed on the 60-day injured list.
INJ SINCE: Aug 31
PLAYERSTATUSNOTES
Colt Emerson
#4 · SS
Out60-Day ILWrist
Emerson is dealing with left wrist inflammation and has been placed on the 60-day injured list. He is expected to miss the remainder of the 2026 season.
INJ SINCE: Aug 14
Will Wilson
#7 · 3B
Out60-Day ILThumb
Wilson is dealing with a left thumb fracture and has been placed on the 60-day injured list.
INJ SINCE: May 2
PLAYERSTATUSNOTES
Brennen Davis
CF
Out60-Day ILHamstring
Davis is dealing with a left hamstring strain and has been placed on the 60-day injured list. He will miss the remainder of the 2026 season.
INJ SINCE: Sep 3
Luke Raley
#20 · RF
Out60-Day ILElbow
Raley is dealing with an elbow injury and has been placed on the 60-day injured list. He is likely to miss the remainder of the 2026 season.
INJ SINCE: Jul 31

Team Rankings

AVG
.233
29th
R
664
28th
HR
182
16th
RBI
638
28th
SB
114
10th
OBP
.314
21st
SLG
.379
28th
OPS
.693
27th
W
76
23rd
SV
35
24th
ERA
4.20
19th
WHIP
1.27
10th
QS
66
3rd
TeamW-LWin %GBRSRA
AstrosAstros81-81.500-734766
RangersRangers80-82.4941673719
MarinersMariners76-86.4695664722
AthleticsAthletics64-98.39517699937
AngelsAngels62-100.38319655752

Team Stats

PlayerGPABRHHRRBISBAVGO/S
Cal Raleigh126451498223692.182  
Mitch Garver5012617224151.175  
Jhonny Pereda31901227280.300  
PlayerGPABRHHRRBISBAVGO/S
Josh Naylor15259758156105730.261  
PlayerGPABRHHRRBISBAVGO/S
Cole Young1605777614217664.246  
Ryan Bliss3801010.125  
PlayerGPABRHHRRBISBAVGO/S
Weston Wilson7516424334147.201  
Brendan Donovan4013712383151.277  
Patrick Wisdom194735140.106  
Will Wilson2511120.200  
Leo Rivas5212411190112.153  
Miles Mastrobuoni132635010.192  
PlayerGPABRHHRRBISBAVGO/S
J.P. Crawford116412549114401.221  
Colt Emerson6922124428233.190  
Michael Arroyo1535513142.371  
Brock Rodden3061812040.197  
PlayerGPABRHHRRBISBAVGO/S
Randy Arozarena154572113161267926.281  
Julio Rodríguez15059669147227122.247  
Luke Raley95262285915391.225  
Taylor Ward143498711127374.225  
Lazaro Montes21527114110.212  
Connor Joe213927132.179  
Victor Robles6613315340910.256  
Stuart Fairchild151943012.158  
PlayerGPABRHHRRBISBAVGO/S
Dominic Canzone1464776012623772.264  
Rob Refsnyder531149164110.140  
PlayerGPWLSVIPSOERAWHIPO/S
Logan Gilbert3212110186.02053.731.09  
Bryan Woo3012100173.01754.011.10  
George Kirby309110174.21484.331.40  
Emerson Hancock25780138.21263.571.14  
Bryce Miller224100118.21194.171.16  
Kade Anderson722035.2323.791.23  
Jhonathan Díaz10001.116.751.50  
PlayerGPWLSVIPSOERAWHIPO/S
Andrés Muñoz61562857.1894.241.22  
Seranthony Domínguez67531262.0653.631.24  
Jose A. Ferrer7344364.2544.181.47  
Hoby Milner4510142.0253.641.24  
Gabe Speier5423146.0452.941.09  
Eduard Bazardo7344167.1704.011.46  
Nick Davila2400127.1134.941.35  
Cooper Criswell3742140.2313.321.40  
Carlos Vargas1630019.0174.741.05  
Michael Rucker3714043.2505.571.28  
Matt Brash2030016.2150.540.84  
Cole Wilcox2300027.0284.001.63  
Josh Simpson80007.1109.822.05  
Troy Taylor20003.029.002.00  
Domingo Gonzalez50007.254.701.83  

Owned Breakdown

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Schedule

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