DataBaseball
2026

Head to head · 2025 pitching

Andrew Heaney vs Zack Littell

In 2025 Zack Littell has been worth 1.5 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.
StatisticAndrew HeaneyZack Littell
G2732
GS2332
IP122.1186.2
W510
SO86130
ERA5.523.81
FIP5.594.88
WHIP1.381.10
K/96.36.3
BB/92.91.5
FIP−134117
WAR-0.70.8

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.
StatisticAndrew HeaneyZack Littell
G223260
GS20393
IP1,107.1727.0
W5642
L6937
SV03
SO1,136569
BB332174
ERA4.544.11
WHIP1.281.25
K/99.27.0
BB/92.72.2
HR/91.61.6
WAR9.52.9

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.