13 strikeouts at Baltimore
Keller allowed no earned runs on 4 hits over 7.0 innings with 13 strikeouts in a 4-0 win at the Baltimore Orioles on May 14, 2023.

BaseballMLBPittsburgh PiratesStarting pitcher
Mitch Keller is a starting pitcher for the Pittsburgh Pirates and was an All-Star in 2023.
188 MLB games926 strikeouts
Updated
Mitch Keller is a starting pitcher for the Pittsburgh Pirates and wears number 23. Born on April 4, 1996, in Cedar Rapids, Iowa, United States, he bats and throws right-handed. Keller made his MLB debut on May 27, 2019, with the Pittsburgh Pirates.
Keller was an All-Star in 2023. In the 2023 regular season, he made 32 starts for the Pittsburgh Pirates with a 4.21 ERA and 210 strikeouts in 194.1 innings. Through the 2025 season, he had a 4.51 ERA and 837 strikeouts in 878.0 innings over 165 games.
Every season, every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | 22 | 22 | 115.2 | 89 | 42 | 5.29 | 1.37 | |
| 2025 | 32 | 32 | 176.1 | 150 | 51 | 4.19 | 1.26 | |
| 2024 | 31 | 31 | 178.0 | 166 | 50 | 4.25 | 1.30 | |
| 2023 | 32 | 32 | 194.1 | 210 | 55 | 4.21 | 1.25 | |
| 2022 | 31 | 29 | 159.0 | 138 | 60 | 3.91 | 1.40 | |
| 2021 | 24 | 23 | 100.2 | 92 | 49 | 6.17 | 1.79 | |
| 2020 | 5 | 5 | 21.2 | 16 | 18 | 2.91 | 1.25 | |
| 2019 | 11 | 11 | 48.0 | 65 | 16 | 7.12 | 1.83 | |
| Career | 188 | 185 | 993.2 | 926 | 341 | 4.60 | 1.38 |
No active flag. Latest report Out (8d ago), no longer on the injury report.
Keller allowed no earned runs on 4 hits over 7.0 innings with 13 strikeouts in a 4-0 win at the Baltimore Orioles on May 14, 2023.
187 games
993.2 IP, 926 K, 4.60 ERA
2019 seasonPittsburgh Pirates
Aug 2, 2026: 2.0 IP, 2 K, 7 ERReds 10, Pirates 2
The teams he has faced most, with his teams' record and his line against each.
His line: 48.2 IP, 41 K, 4.81 ERA
Last met Aug 2, 2026
His line: 47.1 IP, 54 K, 5.89 ERA
Last met Apr 25, 2026
His line: 56.0 IP, 51 K, 3.38 ERA
Last met May 19, 2026
His line: 40.2 IP, 31 K, 4.65 ERA
Last met Jul 3, 2026
His line: 35.1 IP, 30 K, 2.04 ERA
Last met Jul 27, 2026
His line: 28.0 IP, 25 K, 7.07 ERA
Last met Jul 9, 2026
ESPN's injury reports, newest first.
Keller (shoulder) said Wednesday that he feels fully healthy and plans to resume throwing in late October, Aiden Stepansky of MLB.com reports.
ESPN / PIT
Keller (shoulder) said Wednesday that he feels fully healthy and plans to resume throwing in late October, Aiden Stepansky of MLB.com reports.
ESPN / PIT
Keller is dealing with a right arm teres major muscle injury and has been placed on the 60-day injured list. He will miss the remainder of the 2026 season.
sdio / PIT
Keller is dealing with a right arm teres major muscle injury and has been placed on the 60-day injured list. He will miss the remainder of the 2026 season for the Pirates.
sdio / PIT
The Pirates placed Keller on the 60-day injured list Monday due to a right arm teres major muscle injury.
ESPN / PIT
Stats, scores and injury reports come from Agatha's own records: the SABR Lahman Baseball Database for the seasons through 2025, MLB's own box scores, its transactions and ESPN's injury reports.
Updated Nov 11, 2026, 7:24 AM ET. Results and form refresh after every game; biography facts are checked weekly.