CLE @ BOSFinal 0-1, Sep 23, 2026
IP 1.0, H 0, R 0, ER 0, BB 1, K 3, HR 0, PC-ST 22-17, ERA 3.10, PC 22
Betting: BOS moneyline won, run line -1.5 did not cover
BaseballMLBBoston Red SoxRelief pitcher
Tyron Guerrero
Stats, career and game logTyron Guerrero is a Boston Red Sox relief pitcher who made his MLB debut on May 17, 2016, with the San Diego Padres.
40 MLB games since 202641 strikeouts
Updated
About Tyron Guerrero
Tyron Guerrero is a relief pitcher for the Boston Red Sox in MLB and wears number 41. Born on January 9, 1991, in Bocachica, Tierra Bomba Island, Bolivar, Colombia, he bats right-handed and throws right-handed. His MLB debut came on May 17, 2016, with the San Diego Padres.
Guerrero made his MLB debut on May 17, 2016, with the San Diego Padres, and he played for the San Diego Padres in 2016. He played for the Miami Marlins from 2018 to 2019, and he has played for the Boston Red Sox since 2026.
Agatha Research DeskUpdated Oct 5, 2026Season by season40
Every season, every MLB appearance in our records since 2026, newest season first.
| Season | Team | Games | Starts | IP | K | BB | ERA | WHIP |
|---|---|---|---|---|---|---|---|---|
| 2026 | BOS | 39 | 0 | 40.2 | 41 | 6 | 2.21 | 0.98 |
| Career | 39 | 0 | 40.2 | 41 | 6 | 2.21 | 0.98 |
How he is doing now
2026 pitching2.21 ERA40.2 innings, 41 strikeouts, 0.98 WHIP
Red Sox87-752026 regular season, 0-2 in the playoffs
Last game1.0 IP, 3 K, 0 ERSep 23 vs Guardians
Injury status
No active flag. Latest report Out (40d ago), no longer on the injury report.
Game log, 2026
BOS @ TBFinal 1-5, Sep 20, 2026
IP 1.0, H 0, R 0, ER 0, BB 0, K 2, HR 0, PC-ST 12-9, ERA 3.18, PC 12
Betting: BOS moneyline lost, run line +1.5 did not cover
SEA @ BOSFinal 8-9, Aug 31, 2026
IP 0.1, H 3, R 3, ER 3, BB 1, K 0, HR 0, PC-ST 13-7, ERA 3.26, PC 13
Betting: BOS moneyline won, run line -1.5 did not cover
BOS @ NYYFinal 6-0, Aug 29, 2026
IP 1.0, H 1, R 0, ER 0, BB 0, K 0, HR 0, PC-ST 18-12, ERA 2.58, PC 18
Betting: BOS moneyline won, run line -1.5 covered
Show all 10 games
BOS @ NYYFinal 0-1, Aug 28, 2026
IP 1.0, H 0, R 0, ER 0, BB 0, K 1, HR 0, PC-ST 6-6, ERA 2.65, PC 6
Betting: BOS moneyline lost, run line +1.5 covered
BOS @ MIAFinal 7-3, Aug 25, 2026
IP 1.2, H 2, R 0, ER 0, BB 1, K 0, HR 0, PC-ST 26-16, ERA 2.72, PC 26
Betting: BOS moneyline won, run line -1.5 covered
SF @ BOSFinal 4-5, Aug 23, 2026
IP 1.0, H 1, R 0, ER 0, BB 0, K 0, HR 0, PC-ST 11-7, ERA 2.86, PC 11
Betting: BOS moneyline won, run line -1.5 did not cover
ARI @ BOSFinal 7-6, Aug 19, 2026
IP 1.0, H 0, R 0, ER 0, BB 0, K 0, HR 0, PC-ST 9-7, ERA 2.94, PC 9
Betting: BOS moneyline lost, run line -1.5 did not cover
ARI @ BOSFinal 4-9, Aug 18, 2026
IP 1.2, H 2, R 0, ER 0, BB 0, K 1, HR 0, PC-ST 19-15, ERA 3.03, PC 19
Betting: BOS moneyline won, run line -1.5 covered
BOS @ TORFinal 4-6, Aug 12, 2026
IP 0.0, H 3, R 5, ER 4, BB 2, K 0, HR 0, PC-ST 20-12, ERA 3.19, PC 20
Betting: BOS 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
10years2016 to 2026
- 2026First game in our records8-6 loss vs Twins
- Sep 23, 2026Latest game1.0 IP, 3 K, 0 ER vs Guardians
Regular season
39 games
40.2 IP, 41 K, 2.21 ERA; since 2026
First game in our records
May 22, 2026: 1.0 IP, 1 K, 0 ERTwins 8, Red Sox 6
Latest game
Sep 23, 2026: 1.0 IP, 3 K, 0 ERRed Sox 1, Guardians 0
Most often against
The teams he has faced most, with his teams' record and his line against each.
Toronto Blue Jays5 games
2-3his teams
His line: 5.0 IP, 5 K, 0.00 ERA
Last met Aug 12, 2026
New York Yankees4 games
2-2his teams
His line: 3.1 IP, 2 K, 0.00 ERA
Last met Aug 29, 2026
Chicago White Sox3 games
3-0his teams
His line: 3.2 IP, 3 K, 0.00 ERA
Last met Aug 6, 2026
Cleveland Guardians3 games
3-0his teams
His line: 2.1 IP, 5 K, 0.00 ERA
Last met Sep 23, 2026
Tampa Bay Rays3 games
1-2his teams
His line: 3.1 IP, 5 K, 0.00 ERA
Last met Sep 20, 2026
Arizona Diamondbacks2 games
1-1his teams
His line: 2.2 IP, 1 K, 0.00 ERA
Last met Aug 19, 2026
Injury history
ESPN's injury reports, newest first.
- Oct 2, 2026Out Shoulder
The Red Sox placed Guerrero on the 15-day injured list Sunday, retroactive to Sept. 24, with a right shoulder strain.
ESPN / BOS
- Sep 27, 202615-Day-IL Shoulder
The Red Sox placed Guerrero on the 15-day injured list Sunday, retroactive to Sept. 24, with a right shoulder strain.
ESPN / BOS
- Sep 27, 202615-Day-IL Shoulder
The Red Sox activated Guerrero (shoulder) from the 15-day injured list Sunday, per Ian Browne of MLB.com.
ESPN / BOS
- Sep 16, 202615-Day-IL Shoulder
Guerrero's (shoulder) stay on the injured list has been extended due to lower-back soreness, Chris Cotillo of MassLive.com reports.
ESPN / BOS
Show all 5 reports
- Sep 1, 202615-Day-IL Shoulder
The Red Sox placed Guerrero on the 15-day injured list Tuesday with right shoulder inflammation.
ESPN / BOS
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 Nov 10, 2026, 9:51 AM ET. Results and form refresh after every game; biography facts are checked weekly.