DataBaseball
2026
Ian Kennedy headshot

Players · K · Pitcher · 2023

Ian Kennedy

Age
39
B/T
R/R
Height
6' 0"
Weight
210 lb
Born
December 19, 1984 in Huntington Beach, CA, United States
MLB debut
September 1, 2007
dbWAR
2.7
13 season(s)
IP
16.1
ERA
7.16
FIP
5.52
K/9
11.6
FIP−
127
100 = avg

Ian Kennedy was a relief pitcher for the Texas Rangers. In 2023 he struck out 21 batters over 16.1 innings across 16 appearances, going 0-1. His ERA of 7.16 was 65.4% higher than the league average of 4.33. Stripping out defence, his 5.52 FIP suggests he pitched better than his ERA shows. He missed bats on 34.0% of swings (16.2% of every pitch he threw), walked 9.3% of the batters he faced and struck out 28.0%. His -0.1 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, 2023.

FIP5.52
K/911.6
WHIP1.41
WAR-.1

WAR by season

1.50.4-0.7151617181920212223

Pitching

Standard and advanced, by season.

Trend
2023TEX16016.101016132177.165.521.4111.63.9165127-0.1
2022AZ57050.14710573044225.365.581.577.93.9135141-0.7
2021TEX/PHI55056.13126452062173.204.751.109.92.7751110.0
2020KC15114.002020141559.008.831.799.63.2202198-0.6
2019KC63063.13230642473173.412.991.2810.42.476661.5
2018KC2222119.239012562105404.664.611.387.93.01121110.9
2017KC3030154.0513014392131615.385.611.327.73.6123129-0.4
2016KC3333195.21111017380184663.684.671.228.53.0881111.5
2015SD3030168.1915016680174524.284.511.309.32.81081140.8

Batting

Standard and advanced, by season.

Trend
2018KC12100000.500.500.500.000.5000.0%0.0%.439+0.21810.1
2017KC24100010.333.500.333.000.33325.0%0.0%.396+0.21520.1
2016KC23000002.000.000.000.000.0000.0%66.7%.000-0.8-112-0.0
2015SD26484000023.095.095.167.071.2110.0%47.9%.112-7.8-45-0.1

Platoon splits

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

Opponent batting by the side the hitter bats from, 2023. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB292693310.346.414.808.50134.5%
vs RHB463971411.179.283.256.25223.9%

Pitch sequencing

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

ShowBatter
Four-seamSplitterCutterKnuckle curve

Select a count to see exactly what Ian Kennedy throws in it.

Pitch arsenal

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

Four-Seam Fastball60.8%19192.42,36150.8%25.5%43.302.949
Splitter33.4%10584.797641.0%52.3%20.100.350
Cutter4.5%1484.31,94957.1%50.0%2——
Ian Kennedy'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.

Head to head

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Ian Kennedy
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.