Matt Brash

Matt Brash

26-Year-Old PitcherRP
Seattle Mariners
Out
Injury Elbow
Est. Return 4/15/2025
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
From Preseason
#399
ADP
$Signed a one-year contract with the Mariners in March of 2024.
Throwing bullpen Saturday
PSeattle Mariners
Elbow
February 15, 2025
Brash (elbow) will throw a light bullpen session Saturday, Ryan Divish of The Seattle Times reports.
ANALYSIS
Saturday will mark the first time Brash has thrown off a mound since he underwent an internal brace procedure on his right elbow last May. He's not expected to be ready for regular-season action until mid-April at the earliest, but a return to mound work is still an encouraging sign.
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Pitching Stats
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2024
2023
2022
2021
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2023 MLB Game Log
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2022 MLB Game Log
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Left/Right Pitching Splits
Since 2022
 
 
-13%
BAA vs RHP
2024
No Stats
2023
 
 
-26%
BAA vs RHP
2022
 
 
-9%
BAA vs LHP
BAA Batters K BB H 2B 3B HR
Since 2022vs Left .263 236 61 31 52 9 1 3
Since 2022vs Right .230 294 108 31 59 6 1 3
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
2022vs Left .234 94 25 16 18 3 0 1
2022vs Right .257 128 37 17 28 3 0 2
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Home/Away Pitching Splits
Since 2022
 
 
-25%
ERA at Home
2024
No Stats
2023
 
 
-37%
ERA on Road
2022
 
 
-66%
ERA at Home
ERA WHIP IP W L SV K/9 BB/9 HR/9
Since 2022Home 3.12 1.40 60.2 10 2 0 12.2 5.0 0.4
Since 2022Away 4.15 1.45 60.2 3 6 4 12.9 4.2 0.4
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
2022Home 2.22 1.27 24.1 4 0 0 9.6 6.3 0.4
2022Away 6.49 1.82 26.1 0 4 0 12.3 5.5 0.7
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Prospect Rankings History
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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
Aiming for April debut
PSeattle Mariners
Elbow
February 3, 2025
Mariners president of baseball operations Jerry Dipoto said Monday that Brash (elbow) should be ready for the start of spring training and a season debut in the third week of April is the best-case scenario for the reliever, Shannon Drayer of SeattleSports.com reports.
ANALYSIS
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Aiming for late-April return
PSeattle Mariners
Elbow
November 27, 2024
The Mariners are optimistic that Brash (elbow) can make his 2025 debut by the end of April, Adam Jude of the Seattle Times reports.
ANALYSIS
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Visiting with team in September
PSeattle Mariners
Elbow
August 28, 2024
Brash, who continues to rehabilitate from a May 8 internal bracing procedure on his throwing elbow, will visit with the Mariners during the second week of September, MLB.com reports.
ANALYSIS
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Feeling upbeat in recovery
PSeattle Mariners
Elbow
August 7, 2024
Brash, who underwent season-ending elbow surgery May 8, has been with the Mariners during their current homestand and is set to begin playing catch in Arizona next week, Daniel Kramer of MLB.com reports.
ANALYSIS
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Set to begin throwing next month
PSeattle Mariners
Elbow
July 24, 2024
Mariners general manager Justin Hollander said Wednesday that Brash (elbow) will begin a throwing program in mid-August, 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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