DataBaseball
2026

Head to head · Career pitching

Zack Greinke vs Clayton Kershaw

In 2023 Clayton Kershaw has been worth 0.8 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.
StatisticZack GreinkeClayton Kershaw
G562455
GS517451
IP3,244.12,855.1
W217223
L14596
SV10
SO2,8793,052
BB736713
ERA3.472.53
WHIP1.171.02
K/98.09.6
BB/92.02.2
HR/90.90.7
WAR64.774.4

2023 season

2023 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticZack GreinkeClayton Kershaw
G3024
GS2724
IP142.1131.2
W213
SO97137
ERA5.062.46
FIP4.744.03
WHIP1.271.06
K/96.19.4
BB/91.52.7
FIP−11093
WAR1.11.9

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.
StatisticZack GreinkeClayton Kershaw
G2241
GS2132
IP113.0196.2
W413
SV01
SO100213
BB3354
ERA4.144.62
WHIP1.201.14
K/98.09.7
BB/92.62.5

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.