from 4/16/21 - 6/30/21, 13 starts, he averaged 5 7/8 innings per start, had nearly a 3:1 K/BB ratio (7.3/2.5), .256 opponents BA, 1.23 WHIP, 4.01 ERA, 4.24 FIP/3.84 xFIP (a little dinger prone), with a .311 wOBA. That's pretty good pitching. Not great, maybe some of it was overlapping with sticky stuff, but 3/4 rotation slot OK.
From 6/30 - 9/1, 11 starts, 58.1 IP, he had a 7.56 ERA, .390 wOBA, with a .299 / .351 / .577 opponents slash line, and a 2.4 K/BB. 6.62 FIP, 4.61xFIP, 2.8 HR/9.
This month, his ERA is fine (3.82), but his wOBA is high (.369). .304 / .372 / .496. 6+ IP / start, 2.2 K/BB, 1.57. Biggest improvement is in dingers (1.2 / 9), with a bit of bad luck on BABIP (.352). FIP 4.24, xFIP 3.81, essentially matching the start of the year.
If you say the BABIP luck drives some of the // line and wOBA problems, somewhat compensated for by the HR/9 improvement, it starts to look like his awful 2 months hid an OK year.
