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2026
Jon Lester headshot

Players · L · Pitcher · 2021 regular season

Jon Lester

Age
37
B/T
L/L
Height
6' 4"
Weight
249 lb
Number
#34
Born
January 7, 1984 in Tacoma, WA, United States
MLB debut
June 10, 2006

Compare with…vs Clayton Kershawvs Justin Verlandervs Max Scherzer

dbWAR
45.1
Regular season, 30 season(s)
IP
141.1
ERA
4.71
FIP
5.41
K/9
5.8
FIP−
127
100 = avg

Jon Lester was a starting pitcher for the Washington Nationals. In 2021 he struck out 91 batters over 141.1 innings across 28 appearances, 28 of them starts, going 7-6. His ERA of 4.71 was 10.5% higher than the league average of 4.27 — 14th of 23 on his team, and 369th of 567 among MLB pitchers with 20+ innings. Stripping out defence, his 5.41 FIP suggests that his ERA had some help behind him. He missed bats on 20.1% of swings (9.3% of every pitch he threw), walked 8.8% of the batters he faced and struck out 14.5%. 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, 2021 regular season.

FIP5.41
K/95.8
WHIP1.51
WAR-.2

WAR by season

5.22.5-0.206070809101112131415161718192021

Pitching Regular season

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

Trend
2021WSH/STL2828141.17601597491554.715.411.515.83.5110127-0.2
2020CHC121261.0330643542175.165.141.336.22.51161150.3
2019CHC3131171.21310020585165524.464.261.508.72.799942.5
2018CHC3232181.2186017467149643.324.391.317.43.2801061.8
2017CHC3232180.2138017987180604.334.101.329.03.099942.9
2016CHC3232202.2195015455197522.443.411.028.72.358814.1
2015CHC3232205.01112018376207473.342.921.129.12.184744.9
2014BOS/OAK3232219.21611019460220482.462.801.109.02.066755.2
2013BOS3333213.1158020989177673.753.591.297.52.897933.1
2012BOS3333205.19140216110166684.824.111.387.33.01201022.4
2011BOS3131191.2159016674182753.473.831.268.53.588972.7
2010BOS3232208.0199016775225833.253.131.209.73.680774.8
2009BOS3232203.1158018677225643.413.151.2310.02.879735.2
2008BOS3333210.1166020275152663.213.641.276.52.874844.2
2007BOS121163.0400613250314.575.241.467.14.41021170.3
2006BOS151581.1720914360434.764.561.656.64.81051010.9

Batting Regular season

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

Trend
2021WSH/STL27518130224.167.200.271.104.3043.9%47.1%.206-4.7240.3
2019CHC28539160520.188.264.292.104.2969.4%37.7%.249-3.4510.4
2018CHC31657190022.119.119.169.051.1670.0%33.8%.124-10.2-34-0.1
2017CHC28658161426.148.203.259.111.2506.2%40.0%.206-6.4180.4
2016CHC30756060618.102.185.153.051.1468.0%24.0%.163-9.5-7-0.0
2015CHC29714000330.065.108.065.000.1254.2%42.3%.087-12.9-63-0.4
2014BOS/OAK25000003.000.000.000.000.0000.0%60.0%.000-1.2-121-0.1
2013BOS27000004.000.000.000.000.0000.0%57.1%.000-1.7-124-0.1
2012BOS26000003.000.000.000.000.0000.0%50.0%.000-1.5-112-0.1
2011BOS25000003.000.000.000.000.0000.0%60.0%.000-1.2-115-0.1
2010BOS26001012.000.200.000.000.00016.7%33.3%.144-0.9-25-0.0
2009BOS25000002.000.000.000.000.0000.0%40.0%.000-1.4-123-0.1
2008BOS25000002.000.000.000.000.0000.0%40.0%.000-1.4-125-0.1
2006BOS24000003.000.000.000.000.0000.0%75.0%.000-1.1-124-0.1

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 Jon Lester's postseason pitching, by October and round. Not part of any regular-season figure on this page.
SeasonTeamRoundGGSIPWLSVHERHRBBSOERAWHIPK/9
2018 PostCHCWild Card116.0000410191.500.8313.5
2017 PostCHCPostseason total3214.1000631871.880.984.4
NLDS219.2000321351.860.624.7
NLCS114.2000310521.931.713.9
2016 PostCHCPostseason total6535.231027836302.020.937.6
NLDS118.0100500050.000.635.6
NLCS2213.0100921291.380.856.2
World Series3214.211013624163.681.169.8
2015 PostCHCPostseason total2214.002013732144.501.079.0
NLDS117.1010531193.680.8211.0
NLCS116.2010842155.401.356.8
2014 PostOAKWild Card117.1000860257.361.366.1
2013 PostBOSPostseason total5534.241025638291.560.957.5
ALDS117.2100322372.350.788.2
ALCS2211.21101330472.311.465.4
World Series2215.12009111150.590.658.8
2009 PostBOSALDS116.0010431454.501.337.5
2008 PostBOSPostseason total4426.212024735262.361.098.8
ALDS2214.010010003110.000.937.1
ALCS2212.202014732154.971.2610.7
2007 PostBOSPostseason total319.1100621481.931.077.7
ALCS203.2000321154.911.0912.3
World Series115.2100300330.001.064.8
CareerPostseason total · 9 Octobers2622154.09701174315401332.511.027.8

Postseason batting

Postseason Jon Lester's postseason batting, by October and round. Not part of any regular-season figure on this page.
SeasonTeamRoundGPAABRH2B3BHRRBIBBSOSBAVGOBPSLGOPS
2018 PostCHCWild Card111000000010.000.000.000.000
2017 PostCHCPostseason total354010000020.250.250.250.500
NLDS232000000010.000.000.000.000
NLCS122010000010.500.500.5001.000
2016 PostCHCPostseason total497000000240.000.222.000.222
NLDS122000000020.000.000.000.000
NLCS253000000200.000.400.000.400
World Series122000000020.000.000.000.000
2015 PostCHCPostseason total244000000020.000.000.000.000
NLDS122000000000.000.000.000.000
NLCS122000000020.000.000.000.000
2013 PostBOSWorld Series133000000010.000.000.000.000
2007 PostBOSWorld Series122000000010.000.000.000.000
CareerPostseason total · 6 Octobers1224210100002110.048.130.048.178

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.

Opponent batting by the side the hitter bats from, 2021. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
SplitPAABHHRBBSOAVGOBPSLGwOBAK%
vs LHB131118293719.246.287.373.28214.5%
vs RHB496440130224872.295.366.507.37314.5%

Spray chart

Where every ball he put in play landed, 2021.

Loading 25 batted balls…

Hot and cold zones

Batting average by pitch location, 2021.

—————1 AB—2 AB—3 AB.30010 AB—6 AB—5 AB—2 AB.20010 AB—2 AB
Below averageLeague averageAbove average
Batting average by location of the pitch that ended each plate appearance, catcher's view. The bordered square is the strike zone; the outer band is chase territory. Cells with fewer than 8 at-bats are left grey rather than shown as signal. League average on the same attribution is .243.

Pitch sequencing

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

ShowBatter
Four-seamCutterChangeupSinkerCurveball

Select a count to see exactly what Jon Lester throws in it.

Pitch arsenal

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

Four-Seam Fastball31.1%74188.72,17245.6%16.6%151.338.966
Cutter25.5%60886.42,30442.6%16.7%140.293.896
Changeup18.2%43281.31,73736.3%28.0%110.209.579
Sinker16.7%39887.62,04135.4%14.6%118.297.837
Curveball8.4%20172.62,43739.8%35.3%39.231.692
Jon Lester'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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Similar players

Nearest 2021 seasons by command, run prevention and role, on rate statistics rather than totals.

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.