DataBaseball
2026

Head to head · 2025 pitching

Rafael Montero vs Tanner Rainey

In 2025 Rafael Montero has been worth 0.3 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.
StatisticRafael MonteroTanner Rainey
G5913
GS00
IP60.19.2
W10
SO5811
ERA4.4811.17
FIP4.133.96
WHIP1.311.76
K/98.710.2
BB/95.58.4
FIP−9995
WAR0.40.1

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.
StatisticRafael MonteroTanner Rainey
G370217
GS220
IP478.1206.0
W225
L2711
SV3015
SO475253
BB224142
ERA4.745.46
WHIP1.441.50
K/98.911.1
BB/94.26.2
HR/91.01.4
WAR3.5-0.7

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.