DataBaseball
2026

Head to head · Career pitching

Roy Halladay vs Justin Verlander

In 2013 Justin Verlander has been worth 5.3 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.

Career

Totalled over the seasons published here, which is not the same as a whole career: a player who debuted before 2005 begins at 2005, 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 season table.
StatisticRoy HalladayJustin Verlander
G251557
GS250557
IP1,774.23,576.2
W136266
L66159
SV00
SO1,4153,560
BB3111,007
ERA3.113.33
WHIP1.111.14
K/97.29.0
BB/91.62.5
HR/90.80.9
WAR40.972.9

2013 season

2013 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
StatisticRoy HalladayJustin Verlander
G1334
GS1334
IP62.0218.1
W413
SO51217
ERA6.823.46
FIP6.143.28
WHIP1.471.31
K/97.48.9
BB/95.23.1
FIP−15985
WAR-1.04.3

Postseason

Box-score figures only: October is kept out of the season constants, so there is no wOBA, FIP or dbWAR for it.

Every published postseason, pitching, summed with the rates recomputed from the counts.
StatisticRoy HalladayJustin Verlander
G538
GS537
IP38.0226.0
W317
SV00
SO35244
BB574
ERA2.373.58
WHIP0.741.12
K/98.39.7
BB/91.22.9

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.