Players · K · Pitcher · 2026 regular season

Tommy Kahnle

Age: 37
B/T: R/R
Height: 6' 1"
Weight: 230 lb

Born: August 7, 1989 in Latham, NY, United States
MLB debut: April 3, 2014
Drafted: 2013, round 1
College: Lynn
High school: Shaker

Compare with…vs Luke Jackson vs Ryan Borucki vs Michael Kelly

dbWAR: 4.4
IP: 9.0
ERA: 8.00
FIP: 6.88
K/9: 5.0
FIP−: 165

Tommy Kahnle is a relief pitcher for the Boston Red Sox. In 2026 he struck out 5 batters over 9.0 innings across 8 appearances, going 0-0. His ERA of 8.00 was 91.3% higher than the league average of 4.18. Stripping out defence, his 6.88 FIP suggests he pitched better than his ERA shows. He missed bats on 17.4% of swings (8.9% of every pitch he threw), walked 14.0% of the batters he faced and struck out 11.6%. His -0.2 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026 regular season.

FIP6.88

K/95.0

WHIP2.00

WAR-.2

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.


2026	BOS	8	9.0	0	0	0	12	8	5	6	8.00	6.88	2.00	5.0	6.0	191	165	-0.2
2025	DET	66	63.0	1	5	9	51	31	50	31	4.43	4.72	1.30	7.1	4.4	106	114	0.0
2024	NYY	50	42.2	0	2	1	30	10	46	19	2.11	4.01	1.15	9.7	4.0	52	98	0.3
2023	NYY	42	40.2	1	3	2	26	12	48	19	2.66	3.97	1.11	10.6	4.2	61	92	0.4
2022	LAD	13	12.2	0	0	1	5	4	14	3	2.84	4.38	0.63	9.9	2.1	72	110	0.0
2020	NYY	1	1.0	0	0	0	1	0	3	1	0.00	0.19	2.00	27.0	9.0	0	4	0.1
2019	NYY	72	61.1	3	2	0	45	25	88	20	3.67	3.33	1.06	12.9	2.9	81	74	1.1
2018	NYY	24	23.1	2	0	1	23	17	30	15	6.56	4.19	1.63	11.6	5.8	158	101	0.1
2017	CWS/NYY	69	62.2	2	4	0	53	18	96	17	2.59	1.83	1.12	13.8	2.4	59	42	2.2
2016	CWS	29	27.1	0	1	1	21	8	25	20	2.63	4.46	1.50	8.2	6.6	63	107	0.1
2015	COL	36	33.1	0	1	2	31	18	39	28	4.86	4.48	1.77	10.5	7.6	123	113	0.1
2014	COL	54	68.2	2	1	0	51	32	63	31	4.19	4.02	1.19	8.3	4.1	112	107	0.4

Batting Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.

																					Trend
2014	COL	4	4	0	0	0	0	0	1	.000	.000	.000	.000	.000	0.0%	25.0%	.000	-1.0	-106	-0.1	—

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason pitching

Postseason Tommy Kahnle's postseason pitching, by October and round. Not part of any regular-season figure on this page.
Season	Team	Round	G	IP	W	L	SV	H	ER	HR	BB	SO	ERA	WHIP	K/9
2025 Post	DET	Postseason total	4	2.1	0	1	0	5	1	0	2	2	3.86	3.00	7.7
		Wild Card	1	0.1	0	0	0	2	0	0	0	0	0.00	6.00	0.0
		ALDS	3	2.0	0	1	0	3	1	0	2	2	4.50	2.50	9.0
2024 Post	NYY	Postseason total	9	8.2	1	1	1	6	2	0	7	7	2.08	1.50	7.3
		ALDS	3	3.0	1	0	0	0	0	0	2	3	0.00	0.67	9.0
		ALCS	3	4.0	0	0	1	3	0	0	4	3	0.00	1.75	6.8
		World Series	3	1.2	0	1	0	3	2	0	1	1	10.80	2.40	5.4
2022 Post	LAD	NLDS	3	2.0	0	0	0	2	3	0	1	4	13.50	1.50	18.0
2019 Post	NYY	Postseason total	8	8.0	1	0	0	4	2	1	3	8	2.25	0.88	9.0
		ALDS	3	2.1	1	0	0	2	1	1	1	3	3.86	1.29	11.6
		ALCS	5	5.2	0	0	0	2	1	0	2	5	1.59	0.71	7.9
2017 Post	NYY	Postseason total	7	11.1	0	0	1	6	3	1	2	10	2.38	0.71	7.9
		Wild Card	1	2.1	0	0	0	0	0	0	0	1	0.00	0.00	3.9
		ALDS	2	2.2	0	0	1	0	0	0	0	5	0.00	0.00	16.9
		ALCS	4	6.1	0	0	0	6	3	1	2	4	4.26	1.26	5.7
Career		Postseason total · 5 Octobers	31	32.1	2	2	2	23	11	2	15	31	3.06	1.18	8.6

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	24	20	6	1	4	2	.300	.417	.550	.421	8.3%
vs RHB	19	17	6	1	2	3	.353	.421	.647	.456	15.8%

Pitch sequencing

What Tommy Kahnle throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

ChangeupFour-seamSlider

Select a count to see exactly what Tommy Kahnle throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Changeup	63.1%	106	88.2	1,259	44.3%	20.3%	28	.357	1.098
Four-Seam Fastball	30.4%	51	93.6	2,192	51.0%	12.0%	8	—	—
Slider	6.5%	11	84.7	2,272	45.5%	0.0%	1	—	—

Tommy Kahnle's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

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How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.