DataBaseball
2026

Head to head · 2025 pitching

Clayton Kershaw vs Tyler Mahle

In 2025 Clayton Kershaw has been worth 0.5 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.

2025 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticClayton KershawTyler Mahle
G2316
GS2216
IP112.286.2
W116
SO8466
ERA3.362.18
FIP3.553.37
WHIP1.221.13
K/96.76.9
BB/92.83.0
FIP−8581
WAR2.21.7

Career

Totalled over the seasons published here, which is not the same as a whole career: a player who debuted before 2015 begins at 2015, 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 table above.
StatisticClayton KershawTyler Mahle
G244168
GS242167
IP1,477.0879.0
W12546
L4756
SV00
SO1,607886
BB289308
ERA2.584.02
WHIP0.981.28
K/99.89.1
BB/91.83.2
HR/90.91.2
WAR38.412.5

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.