Jon Lester

PosP
B/TL/L
Born1984-01-07
Age (2026)42

Career Stats + Projections

Viewactual = stats as recorded (seasons combined) + projected real-world MLB lines · MLE = level/park-neutral translations
Methodology▸ how WAR & MLE are computed

Stats are park-neutral MLB equivalents. The "TEAM" column shows current org affiliation only — we do NOT project at that team's park.
Rates (K%, BB%, HR-BF) are park-stripped; MiLB stat lines are translated to their MLB-equivalent via per-level MLE factors.
WAR is computed from projected runs prevented vs a replacement pitcher (the marginal arm a team would call up if this pitcher were unavailable) — calibrated to industry-standard fWAR.

YearAge LvlTeam GGSIPBF KBBHR GS%IP/G K%BB%K-BB%HR% ERAFIP WAR
201531MLBChicago Cubs32322058282074716100%6.425.0%5.7%19.3%1.9%3.342.74+6.4
201531MLBChicago Cubs32322058282074716100%6.425.0%5.7%19.3%1.9%3.342.78+6.3
201632MLBChicago Cubs32322037961975221100%6.324.7%6.5%18.2%2.6%2.443.25+5.1
201632MLBChicago Cubs32322037961975221100%6.324.7%6.5%18.2%2.6%2.443.27+5.0
201733MLBChicago Cubs32321817631805726100%5.623.6%7.5%16.1%3.3%4.333.88+3.2
201733MLBChicago Cubs32321817631805726100%5.623.6%7.5%16.1%3.4%4.333.92+3.1
201834MLBChicago Cubs32321827611496324100%5.719.6%8.3%11.3%3.1%3.324.18+2.6
201834MLBChicago Cubs32321827611496324100%5.719.6%8.3%11.3%3.2%3.324.22+2.5
201935MLBChicago Cubs31311727641655226100%5.521.6%6.8%14.8%3.3%4.463.96+2.9
201935MLBChicago Cubs31311727641655226100%5.521.6%6.8%14.8%3.4%4.464.06+2.7
202036MLBChicago Cubs121261265421711100%5.115.8%6.4%9.4%4.0%5.164.80-0.2
202036MLBChicago Cubs121261265421711100%5.115.8%6.4%9.4%4.2%5.164.90-0.2
202137MLBSt. Louis Cardinals2828141627915025100%5.014.5%8.0%6.5%4.0%4.715.08+0.5
202137MLBSt. Louis Cardinals2828141627915025100%5.014.5%8.0%6.5%4.0%4.715.17+0.4
▸ Career (MLB actual + context projections)
Career199199114448041031338149100%5.721.5%7.0%14.4%3.1%3.773.88+20.3
/ 200 IP35352008401805926100%5.721.5%7.0%14.4%3.1%3.773.88+3.6
Career199199114448041031338146100%5.721.5%7.0%14.4%3.0%3.773.85+20.8
/ 200 IP35352008401805926100%5.721.5%7.0%14.4%3.0%3.773.85+3.6