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Cesar Perdomo
P
SF
2026 season
- GP
- 5
- W-L
- 0-1
- ERA
- 3.65
- WHIP
- 1.38
- K
- 14
- IP
- 24.2
Game log
| Date | Opp | Result | Dec | IP | H | ER | BB | K |
|---|---|---|---|---|---|---|---|---|
| Sep 23 | vs MIN | L 2-4 | - | 5.1 | 5 | 2 | 0 | 2 |
| Sep 18 | @LAD | L 2-8 | - | 4.2 | 6 | 2 | 3 | 1 |
| Sep 12 | vs SD | L 6-7 | L | 4.2 | 10 | 5 | 2 | 3 |
| Sep 6 | @NYM | L 2-4 | - | 6.0 | 3 | 0 | 1 | 4 |
| Sep 1 | @PIT | L 12-13 | - | 4.0 | 3 | 1 | 1 | 4 |
Latest news
The Giants optioned Perdomo to Triple-A Sacramento on Friday, Susan Slusser of the San Francisco Chronicle reports.
Perdomo wasn't lined up to make another start this season after throwing 5.1 innings against the Twins on Wednesday, so the Giants will remove him from their active roster to make room for Camilo Doval, who was claimed off waivers Thursday. Perdomo will conclude 2026 with a 3.65 ERA and 1.38 WHIP through 24.2 innings in the majors and could have a chance to open the 2027 campaign in the Giants' rotation.
RotoWire via ESPN · Sep 25
Perdomo didn't factor into the decision Wednesday against the Twins, allowing two runs on five hits and no walks over 5.1 innings. He struck out two.
It was another solid appearance overall for Perdomo, who's held opponents to two runs or fewer in four of his five appearances this season. The 24-year-old southpaw made a decent case to open the 2027 campaign in San Francisco's rotation. Perdomo will likely finish the year with a 3.65 ERA, 1.38 WHIP and 14:7 K:BB across 24.2 innings.
RotoWire via ESPN · Sep 24
Perdomo allowed two runs on six hits and three walks while striking out one over 4.2 innings in a no-decision versus the Dodgers on Friday.
Perdomo was greeted by a Mookie Betts solo home run to lead off the bottom of the first inning, but the young southpaw otherwise put together a decent outing. It was a notable improvement after he gave up five runs over 4.2 innings in his previous start. Perdomo has a 3.72 ERA, 1.50 WHIP and 12:7 K:BB through 19.1 innings over four games (three starts) in the majors. He's projected for one more start this year at home versus the Twins next week.
RotoWire via ESPN · Sep 19
Perdomo (0-1) took the loss Saturday, coughing up five runs on 10 hits and two walks over 4.2 innings as the Giants were downed 7-6 by the Padres. He struck out three.
After a scoreless first frame, Perdomo got tagged for at least one run in each inning he remained on the mound until finally getting chased after 74 pitches (48 strikes). With the Giants out of the playoff picture, one bad performance in his second career start probably isn't going to cost the 24-year-old southpaw his spot in the rotation as the team auditions players for 2027. Perdomo will take a 3.68 ERA, 1.36 WHIP and 11:4 K:BB over 14.2 MLB innings into his next start, which is set to come on the road next weekend against the Dodgers.
RotoWire via ESPN · Sep 13
Perdomo is slated to start Saturday's game against the Padres in San Francisco.
The Giants will keep Perdomo around for a second turn through the rotation after he followed up a strong four-inning long-relief appearance in his MLB debut Sept. 1 by spinning six shutout innings in his first big-league start last Sunday against the Mets. Though Perdomo found success in his first two outings in the majors, he'll be difficult to rely upon after he underwhelmed over a larger sample of work in the minors this season. Prior to his recent call-up, the 24-year-old lefty turned in a 4.43 ERA, 1.30 WHIP and 125:42 K:BB across 120 innings between Double-A Richmond and Triple-A Sacramento.
RotoWire via ESPN · Sep 12
Perdomo didn't factor into the decision Sunday against the Mets, allowing three hits and a walk across six scoreless innings. He struck out four.
Perdomo was stellar in his first major-league start, as he needed just 83 pitches to make it through six scoreless innings. It was quite a performance for the 24-year-old southpaw, who posted a 5.10 ERA across 47.2 innings in nine starts with Triple-A Sacramento this season. While it may have been just a spot start for Perdomo, he certainly made a case Sunday for another look in San Francisco's rotation.
RotoWire via ESPN · Sep 6