David Peterson
Breakdown
Performance
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May 17, 2026
Secures win in bulk-relief outing
Peterson (2-4) allowed two runs on six hits, three walks and a hit batsman while striking out eight over four innings to earn the win Saturday versus the Yankees.
Analysis
This was Peterson's third consecutive bulk-relief appearance, a span that has seen him earn his first two wins of the season. In his three outings in May, he's allowed seven runs (four earned) with a 17:3 K:BB over 13 innings. Overall, he has a 5.40 ERA, 1.57 WHIP and 46:17 K:BB through 43.1 innings. Peterson's looked more effective working behind an opener, so that trend could continue for his next projected outing, which lines up to be on the road against the Nationals.
May 16, 2026
Working in bulk behind Brazoban
Peterson is slated to pitch in bulk relief behind opener Huascar Brazoban during Saturday's game against the Yankees at Citi Field, Abbey Mastracco of the New York Daily News reports.
Analysis
Peterson will work out of the bullpen for the fifth time in six appearances and for the third time in a row behind the right-handed Brazoban, who will likely work an inning or two before giving way to the lefty. The Mets have gotten far better results from Peterson while using him in relief this season and will likely continue to use him out of the bullpen when his future turns in the rotation come up. Peterson has posted an 8.10 ERA, 1.89 WHIP and 11.2 K-BB% across 23.1 innings in five starts and a 1.69 ERA, 0.94 WHIP and 16.9 K-BB% across 16 innings in four relief appearances.
May 11, 2026
Delivers five frames in bulk role
Peterson allowed three runs (zero earned) on four hits and no walks while striking out three over five innings in Sunday's 5-1 loss against the Diamondbacks.
Analysis
Peterson was mostly effective in bulk relief, entering in the third inning and running into little trouble until the sixth, when he allowed three unearned runs following an Andy Ibanez throwing error to open the frame. The southpaw has shown slight improvement over his past two outings, but his season numbers remain underwhelming, as Peterson owns a 5.49 ERA and 1.50 WHIP across 39.1 innings. His next outing is tentatively lined up for Saturday against the Yankees and will likely come behind an opener once again.