Matt Brash

Matt Brash

26-Year-Old PitcherRP
Seattle Mariners
2025 Fantasy Outlook
If you play in only nonkeeper league formats, you do not need to read on any further. Brash had Tommy John surgery, which included installing a brace around the repaired ligament, and that surgery was completed May 10, 2024. Best-case scenario is he makes it back on the mound in Seattle by Memorial Day weekend, but these situations rarely work out in those best-case scenarios. The more likely outcome is Brash is back in the big leagues closer to the mid-summer classic and resumes his high strikeout and high walk ways while frequently showing up on Pitching Ninja clips. Pre-injury, his slider was one of the more unhittable pitches in all of baseball and he threw the pitch 51 percent of the time to hitters. Unfortunately, everything else he threw in 2023 was too hittable, as the league hit anywhere from .300 to .429 against his other offerings. Command is always the last thing to come back in these situations, and Brash did not have much to spare before his injury. He will likely be more fun to watch in social media clips than he will be to have on your roster in 2025. Read Past Outlooks
RANKS
Rest of Season
From Preseason
#383
ADP
$Signed a one-year contract with the Mariners in March of 2025.
Rejoins bullpen
PSeattle Mariners
May 3, 2025
The Mariners reinstated Brash (elbow) from the 15-day injured list Saturday.
ANALYSIS
After missing all of 2024 while recovering from Tommy John surgery, Brash will make his long-awaited return to Seattle's bullpen. The 26-year-old made six appearances at Triple-A Tacoma during his rehab assignment, giving up six runs (five earned) across 5.1 innings, and he'll most likely take on a middle-relief role for the Mariners while he readjusts to major-league hitters. Troy Taylor was optioned to Tacoma in a corresponding move.
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Pitching Stats
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2025
2024
2023
2022
2021
2025 MLB Game Log
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2024 MLB Game Log
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2023 MLB Game Log
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2022 MLB Game Log
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2021 MLB Game Log
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Pitching Appearances Breakdown
Average Pitch Count
16
Last 10 Games
16
Last 5 Games
16
How many pitches does Matt Brash generally throw?
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
 
1-10
 
11-20
 
21-30
 
31-40
 
41-50
 
51-60
 
61-70
 
71-80
 
81-90
 
91-100
 
101-110
 
111-120
 
121+
What part of the game does Matt Brash generally pitch?
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
 
 
 
1st
 
 
 
2nd
 
 
 
3rd
 
 
 
4th
 
 
 
5th
 
 
 
6th
 
 
 
7th
 
 
 
8th
 
 
 
9th
 
Extra
% Games Reaching Innings Threshold
% Games By Number of Innings Pitched
Left/Right Pitching Splits
Since 2023
 
 
-26%
BAA vs RHP
2025
 
 
-50%
BAA vs RHP
2024
No Stats
2023
 
 
-26%
BAA vs RHP
BAA Batters K BB H 2B 3B HR
Since 2023vs Left .285 145 36 16 35 6 1 2
Since 2023vs Right .211 171 72 14 32 3 1 1
2025vs Left .500 3 0 1 1 0 0 0
2025vs Right .250 5 1 0 1 0 0 0
2024vs Left 0 0 0 0 0 0 0 0
2024vs Right 0 0 0 0 0 0 0 0
2023vs Left .281 142 36 15 34 6 1 2
2023vs Right .209 166 71 14 31 3 1 1
More Splits View More Split Stats
Home/Away Pitching Splits
Since 2023
 
 
-40%
ERA on Road
2025
No Stats
2024
No Stats
2023
 
 
-37%
ERA on Road
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2023Home 3.72 1.49 36.1 6 2 0 13.9 4.2 0.5
Since 2023Away 2.25 1.19 36.0 3 2 4 13.0 3.3 0.3
2025Home 0 0 0 0 0 0 0 0 0
2025Away 0.00 1.80 1.2 0 0 0 5.4 5.4 0.0
2024Home 0 0 0 0 0 0 0 0 0
2024Away 0 0 0 0 0 0 0 0 0
2023Home 3.72 1.49 36.1 6 2 0 13.9 4.2 0.5
2023Away 2.36 1.17 34.1 3 2 4 13.4 3.1 0.3
More Splits View More Split Stats
Stat Review
How does Matt Brash compare to other relievers?
This section compares his stats with all relief pitcher seasons from the previous three seasons (minimum 30 innings)*. The bar represents the player's percentile rank. For example, if the bar is halfway across, then the player falls into the 50th percentile for that stat and it would be considered average.

* Exit Velocity, Barrels/BBE %, Balls Hit 95+ MPH %, and Spin Rate are benchmarked against 2019 data (min 30 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
  • K/BB
    Strikeout to walk ratio.
  • K/9
    Average strikeouts per nine innings.
  • BB/9
    Average walks per nine innings.
  • HR/9
    Average home runs allowed per nine innings.
  • Fastball
    Average fastball velocity.
  • ERA
    Earned run average. The average earned runs allowed per nine innings.
  • WHIP
    Walks plus hits per inning pitched.
  • BABIP
    Batting average on balls in play. Measures how many balls in play against a pitcher go for hits.
  • GB/FB
    Groundball to flyball ratio. The higher the number, the more likely a pitcher is to induce groundballs.
  • Left On Base
    The percentage of base runners that a pitcher strands on base over the course of a season.
  • Exit Velocity
    The speed of the baseball as it comes off the bat, immediately after a batter makes contact.
  • Barrels/BBE
    The percentage of batted ball events resulting in a Barrel. A Barrel is a batted ball with similar exit velocity and launch angle to past ones that led to a minimum .500 batting average and 1.500 slugging percentage.
  • Spin Rate
    Spin Rate is the rate of spin on a baseball after it is released. It is measured in revolutions per minute (rpm).
  • Balls Hit 95+ MPH
    The percentage of batted balls hit that met or exceeded the 95 MPH threshold.
  • Swinging Strike
    The percentage of pitches that result in a swing and a miss.
K/BB
1.00
 
K/9
5.4
 
BB/9
5.4
 
HR/9
0.0
 
Fastball
95.9 mph
 
ERA
0.00
 
WHIP
1.80
 
BABIP
.351
 
GB/FB
0.00
 
Left On Base
100.0%
 
Exit Velocity
85.6 mph
 
Barrels/BBE
0.0%
 
Spin Rate
2434 rpm
 
Balls Hit 95+ MPH
14.3%
 
Swinging Strike
6.4%
 
Prospect Rankings History
Advanced Pitching Stats
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Defensive Stats
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Stats Vs Today's Lineup
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Past Fantasy Outlooks
2024
2023
2022
Brash was a workhorse for Seattle last season, establishing career-highs in games played (78) and innings (70.2). He was 2nd among qualified relievers with 107 strikeouts and 8th with a 34.7% strikeout rate and 25.3% K-BB%. The 25-year-old's 9.4% walk percentage was below-average (34th percentile), but a significant improvement over 2022's 14.9% mark. Brash's improved control was likely a big factor in him earning more high-leverage opportunities. He primarily settled into a setup role and racked up a career-best 25 holds, 9 wins and 4 saves. Brash threw far more sliders (50.5% usage) last season, a +12.7 percent difference in usage from 2022. It continues to be his most successful offering (.162 BAA, 48.5% whiff), while his secondaries could still use some work despite adding velocity on his 4-seamer (98.1 mph average). It's clear Brash is most successful as a reliever, so expect him to maintain a late-inning role for the Mariners in 2024.
Brash opened the year in the Mariners' starting rotation, but issued 17 walks and had a 2.05 WHIP through five starts and was subsequently demoted to the minors. After two months in Triple-A, he returned to Seattle as a reliever. The right-hander fared much better in this role, recording a 2.35 ERA, 1.24 WHIP and 43:16 K:BB over his final 30.2 innings. He still had one of the league's worst walk rates at 14.9%, but issued "only" 4.7 BB/9 in relief versus 7.7 BB/9 as a starter. Brash didn't find success with his 97 mph fastball (.379 BA), but his slider and curve were excellent. It's clear he has the stuff to be a shutdown reliever for the M's, but he'll need to improve his control to earn more high-leverage opportunities.
Brash had thrown just 5.1 pro innings prior to last season, which ended up being a breakout campaign. He relied primarily on a 96-mph four-seam fastball that touched 100 mph and a low-to-mid-80s slider with elite spin and movement. Brash's slider is one of the best sliders currently in pro ball. He also throws a changeup and curveball, but those lag behind as distant third and fourth offerings, respectively. It's his command and control that he really needs to improve upon to reach his potential, however, as his changeup just needs to be passable for him to have success as a starter, and he may not even need a viable third pitch given how good his top two pitches are. The 6-foot-1 righty logged an 11.9 BB% in 97.1 innings at High-A and Double-A, and he can have trouble repeating his delivery. Already on the 40-man roster, Brash will begin the regular season in the major-league rotation, ahead of guys like George Kirby and Emerson Hancock. His fastball/slider combination is enough for him to have a fallback option as a shutdown reliever if starting doesn't work out.
More Fantasy News
Closing in on return
PSeattle Mariners
Elbow
May 1, 2025
Brash (elbow) has made six appearances during his rehab assignment with Triple-A Tacoma, logging an 8.44 ERA, 2.06 WHIP and 5:2 K:BB over 5.1 innings.
ANALYSIS
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Sharp in first rehab appearance
PSeattle Mariners
Elbow
April 14, 2025
Brash (elbow) began a minor-league rehab assignment with Triple-A Tacoma on Sunday, Daniel Kramer of MLB.com reports.
ANALYSIS
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Scheduled to throw live BP next
PSeattle Mariners
Elbow
April 7, 2025
Brash (elbow) is scheduled to throw a live batting practice session Wednesday, Daniel Kramer of MLB.com reports.
ANALYSIS
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Rehab assignment delayed by weather
PSeattle Mariners
Elbow
April 4, 2025
Brash (elbow) threw a bullpen session prior to Friday's series opener against the Giants, Adam Jude of The Seattle Times reports.
ANALYSIS
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Getting closer to rehab assignment
PSeattle Mariners
Elbow
March 30, 2025
Brash (elbow), whom Seattle placed on the 15-day injured list Thursday, is getting closer to beginning a minor-league rehab assignment with Triple-A Tacoma, Ryan Divish of The Seattle Times reports.
ANALYSIS
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Latest Fantasy Rumors
Thriving in high-leverage role
PSeattle Mariners
August 11, 2023
Brash owns a 1.98 ERA and 1.10 WHIP across 13.2 innings since the All-Star break.
ANALYSIS
Brash is tied for the MLB lead with 14 appearances in the past 30 days. He recorded just his second save of the season August 4, but the 25-year-old has also notched 17 holds and eight wins across 57 appearances. He's a sneaky source of fantasy value with a slightly boosted ceiling after the Mariners traded closer Paul Sewald at the deadline.
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