DataBaseball
2026
Tommy Kahnle headshot

Pitcher · 2026

Tommy Kahnle

Age
37
B/T
R/R
Height
6' 1"
Weight
230 lb
Born
August 7, 1989 in Latham, NY, USA
MLB debut
April 3, 2014
Drafted
2013, round 1
College
Lynn
High school
Shaker
dbWAR
-.1
3 season(s)
IP
9.0
ERA
8.00
FIP
6.86
K/9
5.0
FIP−
164
100 = avg

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 91.6% higher than the league average of 4.18. Stripping out defence, his 6.86 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.

FIP6.86
K/95.0
WHIP2.00
WAR-.2

Platoon splits

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

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.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB24206142.300.417.550.4218.3%
vs RHB19176123.353.421.647.45615.8%

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, and how often it misses in 2026.

Changeup63.1%10688.21,25944.3%20.3%
Four-Seam Fastball30.4%5193.62,19251.0%12.0%
Slider6.5%1184.72,27245.5%0.0%
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.

Pitching

Standard and advanced, by season.

Trend
2026809.0000128568.006.862.005.06.0192164-0.2
202566063.0159513150314.434.721.307.14.4106114-0.1
202450042.2021301046192.114.011.159.74.052980.3

Head to head

Put Tommy Kahnle beside up to three others.

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Tommy Kahnle
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.