DataBaseball
2026

Head to head · 2026 pitching

Will Klein vs Devin Williams

In 2026 Devin Williams has been worth 0.2 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.

2026 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticWill KleinDevin Williams
G3644
GS30
IP41.240.2
W33
SO4952
ERA3.674.43
FIP3.423.05
WHIP1.561.57
K/910.611.5
BB/94.54.6
FIP−8273
WAR0.60.8

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.
StatisticWill KleinDevin Williams
G58352
GS30
IP64.1338.1
W534
L518
SV2102
SO77517
BB37158
ERA4.202.69
WHIP1.661.11
K/910.813.8
BB/95.24.2
HR/90.40.6
WAR1.18.6

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.