2025 Stats
W-L
1-2
ERA
2.63
WHIP
0.91
K
104
SV
22
Rest-of-Season Projections
2025 Fantasy Outlook
Miller made six starts in 2023, but durability issues raised questions about his role entering the 2024 campaign. However, an outstanding spring of one-inning appearances carved a logical path for the 25-year-old to become the Athletics closer. The right-hander tallied the A's first save of the season and never looked back, averaging 100.9 mph on his 4-seamer while blowing away opposing hitters at a league-leading 41.8 percent clip. Miller also led qualified relievers with a remarkable 33.3 K-BB percentage. Perhaps most importantly, the hurler remained healthy for the most part, only missing a few weeks on the IL with a fractured pinkie on his non-throwing hand. The injury risk remains, but Athletics general manager David Forst recently indicated that the team is not considering moving Miller back into a starting role. His upside warrants a pick as a top-7 closer for 2025 drafts. Read Past Outlooks
Signed a one-year, $765,000 contract with the Athletics in March of 2025. Traded to the Padres in July of 2025.
Role in 2026 undetermined
Padres president of baseball operations A.J. Preller said Tuesday that the team will discuss in the coming weeks whether Miller will remain in the bullpen or move into the starting rotation next season, 97.3 The Fan reports.
Analysis
Miller has been a full-time reliever the last two seasons and has been arguably the best bullpen arm in the game during that span, collecting a 2.56 ERA, 0.89 WHIP and 43.1 percent strikeout rate over 115 regular-season appearances. If the Padres elect to keep him in a relief role, he would likely take over as closer, as incumbent Robert Suarez is expected to exercise the opt-out clause in his contract and become a free agent. However, Miller has past experience as a starter and the club could try him in that role, particularly if it loses both Dylan Cease and Michael King in free agency.
Miller has been a full-time reliever the last two seasons and has been arguably the best bullpen arm in the game during that span, collecting a 2.56 ERA, 0.89 WHIP and 43.1 percent strikeout rate over 115 regular-season appearances. If the Padres elect to keep him in a relief role, he would likely take over as closer, as incumbent Robert Suarez is expected to exercise the opt-out clause in his contract and become a free agent. However, Miller has past experience as a starter and the club could try him in that role, particularly if it loses both Dylan Cease and Michael King in free agency.
Pitching Stats
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2025 MLB Game Log
2025
2024
2023
Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
16
Last 10 Games
18
Last 5 Games
20
How many pitches does Mason Miller 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+
What part of the game does Mason Miller generally pitch?
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
-6%
BAA vs LHP
2025
-25%
BAA vs RHP
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .156 | 106 | 37 | 36 | 8 | |||
| Since 2023vs Right | .166 | 140 | 28 | 52 | 5 | |||
| 2025vs Left | .163 | 39 | 18 | 13 | 4 | |||
| 2025vs Right | .123 | 65 | 10 | 15 | 1 | |||
| 2024vs Left | .146 | 51 | 9 | 15 | 3 | |||
| 2024vs Right | .172 | 53 | 12 | 21 | 3 | |||
| 2023vs Left | .167 | 16 | 10 | 8 | 1 | |||
| 2023vs Right | .229 | 22 | 6 | 16 | 1 | |||
| More Splits→ | View More Split Stats | |||||||
Home/Away Pitching Splits
Since 2023
-32%
ERA at Home
2025
-35%
ERA at Home
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 2.30 | 0.85 | 82.1 | 13.7 | 3.1 | ||||
| Since 2023Away | 3.36 | 1.07 | 77.2 | 14.0 | 4.3 | ||||
| 2025Home | 2.12 | 0.85 | 34.0 | 15.1 | 2.6 | ||||
| 2025Away | 3.25 | 0.98 | 27.2 | 15.3 | 5.9 | ||||
| 2024Home | 2.25 | 0.72 | 32.0 | 14.1 | 2.5 | ||||
| 2024Away | 2.73 | 1.03 | 33.0 | 14.7 | 3.3 | ||||
| 2023Home | 2.76 | 1.10 | 16.1 | 9.9 | 5.0 | ||||
| 2023Away | 4.76 | 1.29 | 17.0 | 10.6 | 3.7 | ||||
| More Splits→ | View More Split Stats | ||||||||
Stat Review
How does Mason Miller 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.
* 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
3.71K/9
15.2BB/9
4.1HR/9
0.7Fastball
102.8 mphERA
2.63WHIP
0.91BABIP
.248GB/FB
1.08Left On Base
75.5%Exit Velocity
80.8 mphBarrels/BBE
4.1%Spin Rate
2483 rpmBalls Hit 95+ MPH
19.3%Swinging Strike
21.6%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
The three most fantasy-relevant aspects of Miller's profile are his off-the-charts injury risk, his truly elite stuff and his team context: great home park, horrific run support. Of pitchers who will enter spring training healthy, it would be hard to find anyone more likely to get injured during spring training than Miller. A shoulder injury limited him to 30.2 innings (including the Arizona Fall League) as a 23-year-old in 2022 - his first full pro season. A UCL sprain limited him to 52.2 innings in 2023, and he has only topped 60 innings twice dating back to college, logging 67.2 innings in 2019 and 98.2 innings in 2021, in part because of a Type 1 diabetes diagnosis. The fact he can touch 102 mph with his fastball only adds to the injury risk. He threw five-plus innings in three of his 17 appearances last year, and he didn't throw more than three innings in any of his 11 post-injury appearances. As scary as his durability track record is, his stuff is equally scary for opposing batters. In addition to his 80-grade fastball, he throws a mid-90s cutter, an upper-80s slider and a low-90s changeup. There are reports that the 25-year-old flamethrower could be used as a high-leverage reliever this year due to his durability issues, but this team is arguably the worst in baseball for pitcher wins and saves.
More Fantasy News
Collects four-out save
Miller walked one and struck out three over 1.1 hitless and scoreless innings to earn the save in Friday's 7-4 win over the Diamondbacks.
Analysis
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Extends scoreless streak Sunday
Miller earned a hold against the White Sox on Sunday, walking two batters and striking out one over a hitless and scoreless two-thirds of an inning.
Analysis
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Gets first save as Padre
Miller earned a save against the Diamondbacks on Wednesday, striking out three batters and walking one over one hitless and scoreless inning.
Analysis
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Earns hold in team debut
Miller allowed two hits and struck out one in a scoreless inning to earn a hold in Friday's 4-1 win over the Cardinals.
Analysis
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Dealt to San Diego
The Padres acquired Miller and JP Sears from the Athletics on Thursday in exchange for shortstop Leo De Vries and right-handers Braden Nett, Eduarniel Nunez and Henry Baez, Jeff Passan of ESPN.com reports.
Analysis
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Latest Fantasy Rumors
Move into rotation possible
Padres president of baseball operations A.J. Preller said Tuesday that the team will hold discussions about whether Miller will open next season in the rotation or bullpen, Jeff Sanders of the San Diego Union-Tribune reports.
Analysis
With Robert Suarez expected to opt out of his contract and become a free agent, Miller is the natural choice to slide into the closer role for the Padres. However, the team isn't ruling out giving him an opportunity to start. Miller boasts a 2.81 ERA, 0.96 WHIP and 246:65 K:BB over 160 regular-season innings in his career, which covers six starts and 119 relief outings.
With Robert Suarez expected to opt out of his contract and become a free agent, Miller is the natural choice to slide into the closer role for the Padres. However, the team isn't ruling out giving him an opportunity to start. Miller boasts a 2.81 ERA, 0.96 WHIP and 246:65 K:BB over 160 regular-season innings in his career, which covers six starts and 119 relief outings.