CLE @ KCFinal 2-3, Sep 27, 2026
IP 5.0, H 3, R 2, ER 2, BB 2, K 5, HR 2, PC-ST 74-45, ERA 2.57, PC 74
Betting: CLE moneyline lost, run line -1.5 did not cover
BaseballMLBCleveland GuardiansRelief pitcher
Austin Peterson
Stats, career and game logAustin Peterson is a right-handed relief pitcher for the Cleveland Guardians and made his MLB debut on Sep 5, 2026.
2 MLB games8 strikeouts
Updated
About Austin Peterson
Born on September 19, 1999, in Valparaiso, Indiana, United States, Austin Peterson wears number 49 for the Cleveland Guardians. The right-hander, who also bats right-handed, made his MLB debut with the Guardians on Sep 5, 2026.
Peterson allowed 2 earned runs on 3 hits over 5.0 innings in relief on Sep 27, 2026, with 5 strikeouts and 2 walks in a 3-2 loss at the Kansas City Royals. Earlier, on Sep 5, 2026, he allowed no earned runs on 1 hit over 2.0 innings, with 3 strikeouts, in a 6-0 loss to the Detroit Tigers.
Agatha Research DeskUpdated Oct 28, 2026Season by season2
Every season, every MLB appearance of his career, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | CLE | 2 | 0 | 7.0 | 8 | 2 | 2.57 | 0.86 |
| Career | 2 | 0 | 7.0 | 8 | 2 | 2.57 | 0.86 |
How he is doing now
2026 pitching2.57 ERA7.0 innings, 8 strikeouts, 0.86 WHIP
Guardians85-772026 regular season, 5-6 in the playoffs
Last game5.0 IP, 5 K, 2 ERSep 27 at Royals
Injury status
No injury reports on file.
Game log, 2026
DET @ CLEFinal 6-0, Sep 5, 2026
IP 2.0, H 1, R 0, ER 0, BB 0, K 3, HR 0, PC-ST 31-20, ERA 0.00, PC 31
Betting: CLE moneyline lost, run line -1.5 did not cover
Box score lines from ESPN.
Betting: his team's result at the closing moneyline and run line most of our sportsbooks closed at (3 books or more).
Career
- 2026MLB debut6-0 loss vs Tigers
- Sep 27, 2026Latest game5.0 IP, 5 K, 2 ER at Royals
Regular season
2 games
7.0 IP, 8 K, 2.57 ERA
First MLB game
Sep 5, 2026: 2.0 IP, 3 K, 0 ERTigers 6, Guardians 0
Latest game
Sep 27, 2026: 5.0 IP, 5 K, 2 ERRoyals 3, Guardians 2
Most often against
The teams he has faced most, with his teams' record and his line against each.
Detroit Tigers1 game
0-1his teams
His line: 2.0 IP, 3 K, 0.00 ERA
Last met Sep 5, 2026
Kansas City Royals1 game
0-1his teams
His line: 5.0 IP, 5 K, 3.60 ERA
Last met Sep 27, 2026
Sources and updates
Stats, scores and injury reports come from Agatha's own records: MLB's own box scores, its transactions and ESPN's injury reports.
Updated Oct 28, 2026, 6:36 AM ET. Results and form refresh after every game; biography facts are checked weekly.