2025 Stats
W-L
3-10
ERA
3.58
WHIP
1.17
K
89
SV
0
Rest-of-Season Projections
2025 Fantasy Outlook
Keller signed a five-year, $77 million extension at the start of spring training and was expected to lead the Pirates' rotation throughout the length of the contract. He took a backseat to Paul Skenes quickly, but Keller also lost some ground on the skills that allowed him to break out in 2023. In particular, his strikeout rate dropped four percentage points, thanks primarily to a less effective fastball that lost a tick of velocity. While that was a disappointing aspect of his campaign, Keller has established a safe baseline of performance as he's kept his walk rate in the 6.5 percent range in consecutive seasons, a considerable improvement from the early portions of his career. Overall, expect an ERA around 4.20 and a WHIP in the high 1.20s with around a strikeout per inning. That's the profile of a back-end starter in mixed formats, though Keller's durability arguably gives him a slight bump in value. Read Past Outlooks

Coughs up two homers
Keller did not factor in the decision during Tuesday's loss to Kansas City. He allowed three runs (two earned) on four hits and a walk while striking out five over 6.2 innings.
Analysis
Keller gave up a solo shot to Jac Caglianone in the second inning but held the Royals in check until Nick Loftin's two-run shot in the seventh. It was Keller's first time allowing multiple home runs in a start this season. He's given up three or fewer runs in six consecutive outings, posting a 2.45 ERA over 36.2 frames during that span. He dropped his season ERA to 3.58 with an 89:27 K:BB. Keller's next start is expected to come after the All-Star break.
Keller gave up a solo shot to Jac Caglianone in the second inning but held the Royals in check until Nick Loftin's two-run shot in the seventh. It was Keller's first time allowing multiple home runs in a start this season. He's given up three or fewer runs in six consecutive outings, posting a 2.45 ERA over 36.2 frames during that span. He dropped his season ERA to 3.58 with an 89:27 K:BB. Keller's next start is expected to come after the All-Star break.
Pitching Stats
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2025 MLB Game Log
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Minor League Game Log
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Pitching Appearances Breakdown
Average Pitch Count
93
Last 10 Games
92
Last 5 Games
94
How many pitches does Mitch Keller 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 Mitch Keller 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
-10%
BAA vs RHP
2025
-25%
BAA vs RHP
BAA | K | BB | H | HR | ||||
---|---|---|---|---|---|---|---|---|
Since 2023vs Left | .264 | 249 | 78 | 258 | 38 | |||
Since 2023vs Right | .238 | 216 | 54 | 216 | 19 | |||
2025vs Left | .275 | 38 | 18 | 61 | 6 | |||
2025vs Right | .205 | 51 | 9 | 44 | 3 | |||
2024vs Left | .268 | 96 | 23 | 99 | 16 | |||
2024vs Right | .254 | 70 | 27 | 83 | 7 | |||
2023vs Left | .253 | 115 | 37 | 98 | 16 | |||
2023vs Right | .244 | 95 | 18 | 89 | 9 | |||
More Splits→ | View More Split Stats |
Home/Away Pitching Splits
Since 2023
-35%
ERA at Home
2025
-21%
ERA on Road
ERA | WHIP | IP | K/9 | BB/9 | |||||
---|---|---|---|---|---|---|---|---|---|
Since 2023Home | 3.24 | 1.16 | 250.0 | 8.1 | 2.2 | ||||
Since 2023Away | 4.97 | 1.34 | 235.1 | 9.1 | 2.7 | ||||
2025Home | 3.89 | 1.28 | 69.1 | 7.3 | 2.1 | ||||
2025Away | 3.09 | 0.98 | 43.2 | 6.8 | 2.3 | ||||
2024Home | 3.08 | 1.17 | 90.2 | 8.5 | 2.3 | ||||
2024Away | 5.46 | 1.44 | 87.1 | 8.2 | 2.8 | ||||
2023Home | 2.90 | 1.06 | 90.0 | 8.4 | 2.3 | ||||
2023Away | 5.35 | 1.41 | 104.1 | 10.9 | 2.8 | ||||
More Splits→ | View More Split Stats |
Stat Review
How does Mitch Keller compare to other starting pitchers?
This section compares his stats with all starting pitcher seasons from the previous three seasons (minimum 120 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 120 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 120 IP). See here for more exit velocity/barrels stats plus an explanation of current limitations with that data set.
K/BB
3.30K/9
7.1BB/9
2.2HR/9
0.7Fastball
93.7 mphERA
3.58WHIP
1.17BABIP
.295GB/FB
1.44Left On Base
68.7%Exit Velocity
82.6 mphBarrels/BBE
4.2%Spin Rate
2464 rpmBalls Hit 95+ MPH
24.7%Swinging Strike
8.9%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
2021
2020
2019
2018
2017
2016
2015
Keller earned his first career All-Star nod in 2023 with a 3.31 ERA and 1.12 WHIP in 19 starts during the first half, but he fell apart after the break with a 5.59 ERA and 1.44 WHIP in 13 outings. The good news is that the right-hander stayed mostly healthy and set a career high with 194.1 innings, and he also improved his strikeout rate to 25.5 percent and walk rate to 6.7 percent. Keller also may have received some unfortunate results, as indicated by a 3.83 SIERA and 3.70 xFIP compared to a 4.21 ERA. Despite the struggles down the stretch in 2023, it's a season to build on as he enters his age-28 campaign. Keller certainly shouldn't be the ace of a staff but is a strong option to round out a rotation for fantasy managers in 2024, especially if he can maintain the decent strikeout and win (13) totals.
More Fantasy News

Blanks Cards across seven frames
Keller (3-10) earned the win against the Cardinals on Wednesday, allowing five hits and one walk while striking out seven batters in seven scoreless innings.
Analysis
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Captures second win of 2025
Keller (2-10) earned the win against the Mets on Friday, allowing one run on five hits and one walk while striking out four across 5.1 innings.
Analysis
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Tagged with tough loss
Keller (1-10) took the loss against the Rangers on Saturday, allowing three runs (two earned) on three hits and two walks while striking out five across 5.2 innings.
Analysis
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Another quality start
Keller didn't factor into the decision in Sunday's extra-inning loss to the Cubs, allowing two runs on three hits and two walks over six innings. He struck out three.
Analysis
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Delivers 10th quality start
Keller (1-9) took the loss Tuesday, giving up three runs on eight hits over six innings as the Pirates were downed 3-2 by the Marlins. He struck out four without walking a batter.
Analysis
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Latest Fantasy Rumors

Interest from Cubs
The Cubs and Pirates have had trade discussions involving Keller, Bruce Levine of 670TheScore.com reports.
Analysis
There have been whispers since the offseason about the Pirates fielding trade interest in Keller, although it's not clear what their appetite is for dealing him within the division. Keller is in the second year of a five-year, $77 million contract extension he signed in February of 2024. He's collected a 4.02 ERA, 1.22 WHIP and 73:24 K:BB over 94 innings covering 16 starts for the Pirates in 2025.
There have been whispers since the offseason about the Pirates fielding trade interest in Keller, although it's not clear what their appetite is for dealing him within the division. Keller is in the second year of a five-year, $77 million contract extension he signed in February of 2024. He's collected a 4.02 ERA, 1.22 WHIP and 73:24 K:BB over 94 innings covering 16 starts for the Pirates in 2025.