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Zack Kelly

Pitcher · Boston Red Sox. 2024 season stats with ranks among qualified players.

Pitching, 2024

Zack Kelly posted a 3.97 ERA and a 4.84 FIP with a 25.3% strikeout rate over 56.7 innings in 2024.

Stat	2024	Percentile
Innings pitched	56.7	–
Starts	3	–
ERA	3.97	31st percentile
FIP	4.84	7th percentile
xFIP	3.99	40th percentile
Strikeout %	25.3%	64th percentile
Walk %	11.2%	13th percentile
K-BB%	14.1%	34th percentile
Home runs per 9	1.59	7th percentile
Whiff %	25.6%	64th percentile
Fastball velocity	96.5	–

Percentile compares each number with the 212 qualified pitchers in 2024 (100th = best, including for stats where lower is better).

Recent seasons

Season	IP	ERA	FIP	K%	BB%
2026	16.3	3.31	3.65	19.7%	9.9%
2025	35.3	4.58	3.53	23.0%	7.9%
2024	56.7	3.97	4.84	25.3%	11.2%

Boston Red Sox teammates

About these numbers

Season totals and rates from every regular-season game. wRC+ is runs created adjusted for park and league (100 is average); FIP and xFIP estimate a pitcher's run prevention from strikeouts, walks and home runs; K-BB% is strikeout rate minus walk rate.

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