DataBaseball
2026

Head to head · 2026 pitching

Yusei Kikuchi vs David Peterson

In 2026 David Peterson has been worth 1.0 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.

2026 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticYusei KikuchiDavid Peterson
G1432
GS1423
IP67.2148.1
W19
SO67137
ERA4.924.79
FIP3.933.97
WHIP1.541.50
K/98.98.3
BB/94.03.9
FIP−9495
WAR0.91.9

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.
StatisticYusei KikuchiDavid Peterson
G213163
GS201138
IP1,055.2771.0
W4946
L6538
SV11
SO1,078751
BB386327
ERA4.494.25
WHIP1.371.40
K/99.28.8
BB/93.33.8
HR/91.50.9
WAR10.010.7

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.