Season totals and game logs update as official box scores enter the LeagueMind archive.
The Red Sox placed Guerrero on the 15-day injured list Tuesday with right shoulder inflammation.
Reported Sep 1, 2:49 PM EST · espn| Season | G | H | R | ER | BB | SO | HR | PC | IP | ERA |
|---|---|---|---|---|---|---|---|---|---|---|
| 2026 | 38 | 37 | 18 | 14 | 7 | 36 | 2 | 573 | 38.2 | 3.26 |
| 2019 | 52 | 42 | 34 | 32 | 36 | 43 | 7 | 900 | 46.0 | 6.26 |
| 2018 | 60 | 64 | 40 | 35 | 30 | 68 | 8 | 1120 | 58.0 | 5.43 |
| 2016 | 1 | 3 | 1 | 1 | 1 | 0 | 0 | 22 | 2.0 | 4.50 |
| Date | Opp | Result | Summary | IP | H | R | ER | BB | SO | HR | PC |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Aug 31, 26 | vs SEA | W 9-8 | 0.1 IP, 3 ER, 0 K, BB | 0.1 | 3 | 3 | 3 | 1 | 0 | 0 | 13 |
| Aug 29, 26 | @ NYY | W 6-0 | 1.0 IP, 0 ER, 0 K, 0 BB | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 18 |
| Aug 28, 26 | @ NYY | L 0-1 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 6 |
| Aug 25, 26 | @ MIA | W 7-3 | 1.2 IP, 0 ER, 0 K, BB | 1.2 | 2 | 0 | 0 | 1 | 0 | 0 | 26 |
| Aug 23, 26 | vs SF | W 5-4 | 1.0 IP, 0 ER, 0 K, 0 BB | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 11 |
| Aug 19, 26 | vs ARI | L 6-7 | 1.0 IP, 0 ER, 0 K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 0 | 0 | 9 |
| Aug 18, 26 | vs ARI | W 9-4 | 1.2 IP, 0 ER, K, 0 BB | 1.2 | 2 | 0 | 0 | 0 | 1 | 0 | 19 |
| Aug 12, 26 | @ TOR | L 4-6 | 0.0 IP, 4 ER, 0 K, 2 BB | 0.0 | 3 | 5 | 4 | 2 | 0 | 0 | 20 |
| Aug 11, 26 | @ TOR | L 3-5 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 9 |
| Aug 9, 26 | vs ATH | L 3-4 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 15 |
| Aug 6, 26 | vs CHW | W 12-11 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 9 |
| Aug 5, 26 | vs CHW | W 4-0 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 7 |
| Aug 2, 26 | @ LAD | W 8-4 | 1.0 IP, ER, K, 0 BB | 1.0 | 2 | 1 | 1 | 0 | 1 | 0 | 23 |
| Aug 1, 26 | @ LAD | W 3-2 | 1.0 IP, 0 ER, 0 K, 0 BB | 1.0 | 1 | 0 | 0 | 0 | 0 | 0 | 11 |
| Jul 29, 26 | @ ATH | W 4-2 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 0 | 0 | 0 | 0 | 1 | 0 | 11 |
| Jul 26, 26 | vs TOR | W 6-1 | 1.0 IP, 0 ER, 0 K, BB | 1.0 | 1 | 0 | 0 | 1 | 0 | 0 | 16 |
| Jul 24, 26 | vs TOR | W 6-4 | 1.1 IP, 0 ER, K, 0 BB | 1.1 | 0 | 0 | 0 | 0 | 1 | 0 | 13 |
| Jul 20, 26 | vs BAL | W 6-5 | 1.1 IP, ER, 3 K, 0 BB | 1.1 | 2 | 1 | 1 | 0 | 3 | 0 | 19 |
| Jul 17, 26 | vs TB | W 5-3 | 1.0 IP, 0 ER, K, 0 BB | 1.0 | 1 | 0 | 0 | 0 | 1 | 0 | 13 |
| Jul 10, 26 | @ NYM | W 6-2 | 1.0 IP, 0 ER, 0 K, 0 BB | 1.0 | 2 | 0 | 0 | 0 | 0 | 0 | 19 |
| Jul 9, 26 | @ CHW | W 2-1 | 1.2 IP, 0 ER, K, 0 BB | 1.2 | 2 | 0 | 0 | 0 | 1 | 0 | 19 |
| Jul 5, 26 | @ LAA | W 7-5 | 2.0 IP, 0 ER, K, BB | 2.0 | 0 | 0 | 0 | 1 | 1 | 0 | 26 |
| Jun 29, 26 | vs WSH | W 6-3 | 1.0 IP, 0 ER, 2 K, 0 BB | 1.0 | 1 | 0 | 0 | 0 | 2 | 0 | 15 |
| Jun 28, 26 | vs NYY | W 5-4 | 0.2 IP, 0 ER, 0 K, 0 BB | 0.2 | 0 | 0 | 0 | 0 | 0 | 0 | 9 |
| Jun 24, 26 | @ COL | L 6-8 | 0.2 IP, 0 ER, K, 0 BB | 0.2 | 2 | 3 | 0 | 0 | 1 | 0 | 25 |