2025 Stats
W-L
0-0
ERA
0.00
WHIP
0.00
K
0
SV
0
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
Shows off blistering fastball
Miller threw 11 fastballs over 100 mph Tuesday against the Rangers in his second appearance of the spring, MLB's David Adler reports.
ANALYSIS
Miller's first fastball of the outing -- clocked at 98.8 mph -- was hit for a home run off the bat of Josh Smith. After that, Miller ramped up the velocity, consistently hitting triple digits and topping out at 102.9 mph. Miller solidified himself in the ninth-inning role for the A's with a breakout in 2024 when he racked up 28 saves and 104 strikeouts in 55 appearances, and he is being drafted as a top-five closer in many leagues this spring.
Miller's first fastball of the outing -- clocked at 98.8 mph -- was hit for a home run off the bat of Josh Smith. After that, Miller ramped up the velocity, consistently hitting triple digits and topping out at 102.9 mph. Miller solidified himself in the ninth-inning role for the A's with a breakout in 2024 when he racked up 28 saves and 104 strikeouts in 55 appearances, and he is being drafted as a top-five closer in many leagues this spring.
Pitching Stats
Loading Pitching Stats...
2025
2024
2023
Minor League Game Log
Calculate Stats Over Time
Just click on any two dates.
Loading Minor League Pitching Game Log...
Left/Right Pitching Splits
Since 2023
-21%
BAA vs LHP
2025
No Stats
| BAA | K | BB | H | HR | ||||
|---|---|---|---|---|---|---|---|---|
| Since 2023vs Left | .152 | 67 | 19 | 23 | 4 | |||
| Since 2023vs Right | .193 | 75 | 18 | 37 | 4 | |||
| 2025vs Left | 0 | 0 | 0 | 0 | 0 | |||
| 2025vs Right | 0 | 0 | 0 | 0 | 0 | |||
| 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
-29%
ERA at Home
2025
No Stats
| ERA | WHIP | IP | K/9 | BB/9 | |||||
|---|---|---|---|---|---|---|---|---|---|
| Since 2023Home | 2.42 | 0.85 | 48.1 | 12.7 | 3.4 | ||||
| Since 2023Away | 3.42 | 1.12 | 50.0 | 13.3 | 3.4 | ||||
| 2025Home | 0 | 0 | 0 | 0 | 0 | ||||
| 2025Away | 0 | 0 | 0 | 0 | 0 | ||||
| 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 | ||||||||
Prospect Rankings History
Advanced Pitching Stats
Loading Advanced Pitching Stats...
Defensive Stats
Loading MLB Defensive Stats...
Stats Vs Today's Lineup
Want more matchup stats?
Loading Matchup Stats...
Our full team depth charts are reserved for RotoWire subscribers.
Subscribe Now
Recent RotoWire Articles Featuring Mason Miller See More
Kristian Campbell has made Boston's Opening Day roster but didn't have the best spring. How does that affect his long-term value?
Mason Miller makes a big jump in Ryan Rufe's updated closer rankings.
The latest update to the RotoWire Roundtable Rankings sees Jackson Chourio move into the back of the first round.
Jason Collette breaks down his AL Tout Wars team, which includes the currently injured George Kirby at a discount price.
MLB Awards odds for AL Rookie of the Year, NL Rookie of the Year and more are live. Adam Warner wraps up his MLB futures picks with a look at these and other MLB awards.
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
Remaining in bullpen
Athletics general manager David Forst said this week that the team isn't considering moving Miller back into a starting role, John Shea of the San Francisco Chronicle reports.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Falters in ninth Saturday
Miller was charged with his third blown save of the season in an extra-inning loss to the Mariners on Saturday, allowing two earned runs on two hits over one inning. He struck out three.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Lands four-out save
Miller picked up the save Thursday against Texas, striking out two across 1.1 perfect innings.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Garners win Tuesday
Miller (2-2) got the win over the Rangers on Tuesday after pitching a scoreless ninth inning. He allowed two hits and struck out two.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Sets franchise rookie record
Miller walked one and struck out one in a scoreless ninth inning Wednesday to collect his 27th save of the season in Wednesday's 5-3 win over the Cubs.
ANALYSIS
Subscribe now to instantly reveal our take on this news.
Subscribe now to instantly reveal our take on this news.
Latest Fantasy Rumors
No movement on extension
During an appearance on Foul Territory on Friday, Miller said the A's have not reached out regarding a contract extension.
ANALYSIS
The Athletics have uncharacteristically spent some significant money this offseason, including extensions for Brent Rooker and Lawrence Butler, but it doesn't appear that Miller will be joining that group anytime soon. The right-hander will have his first year of arbitration eligibility in 2026, so he's still multiple years away from potentially hitting free agency.
The Athletics have uncharacteristically spent some significant money this offseason, including extensions for Brent Rooker and Lawrence Butler, but it doesn't appear that Miller will be joining that group anytime soon. The right-hander will have his first year of arbitration eligibility in 2026, so he's still multiple years away from potentially hitting free agency.