DataBaseball
2026

Head to head · Career pitching

Corey Kluber vs Zack Wheeler

In 2023 Zack Wheeler has been worth 6.0 more wins. Both lines are computed from play-by-play on the same constants, so they are measured the same way rather than quoted from two sources.

Career

Totalled over the seasons published here, which is not the same as a whole career: a player who debuted before 2005 begins at 2005, not at his real first game.

Career pitching totals. ERA, WHIP and the per-nine rates are recomputed from the components rather than averaged; FIP needs each season’s own constant and is left to the season table.
StatisticCorey KluberZack Wheeler
G271311
GS260311
IP1,641.21,890.1
W116127
L7780
SV10
SO1,7252,013
BB368537
ERA3.443.26
WHIP1.131.13
K/99.59.6
BB/92.02.6
HR/91.00.9
WAR36.141.3

2023 season

2023 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticCorey KluberZack Wheeler
G1532
GS932
IP55.0192.0
W313
SO42212
ERA7.043.61
FIP7.113.15
WHIP1.641.08
K/96.99.9
BB/93.41.8
FIP−16473
WAR-1.14.9

Postseason

Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.

Every published postseason, pitching, summed with the rates recomputed from the counts.
StatisticCorey KluberZack Wheeler
G1013
GS911
IP47.074.1
W44
SV00
SO4880
BB1317
ERA4.022.30
WHIP1.230.77
K/99.29.7
BB/92.52.1

More head to heads

The same seasons, measured against somebody else.

How these are computed

FIP uses the constant solved from this season’s own runs, and FIP− is park-adjusted against the same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page. To put these two beside a third, the comparison page takes up to four.