DataBaseball
2026

Head to head · 2025 pitching

Tanner Houck vs Reese Olson

In 2025 Reese Olson has been worth 1.9 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.
StatisticTanner HouckReese Olson
G913
GS913
IP43.268.2
W04
SO3265
ERA8.043.15
FIP6.163.50
WHIP1.691.21
K/96.68.5
BB/93.53.3
FIP−14884
WAR-0.51.4

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.
StatisticTanner HouckReese Olson
G11356
GS8053
IP474.1284.2
W2413
L3219
SV90
SO449269
BB15891
ERA3.973.60
WHIP1.241.17
K/98.58.5
BB/93.02.9
HR/90.80.8
WAR8.25.6

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.