Head to head · 2026 pitching

Stephen Kolek vs Michael Wacha

So far in 2026 Michael Wacha has been worth 1.8 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.

Stephen Kolek KC

Michael Wacha KC

2026 pitching, season in progress. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
Statistic	Stephen Kolek	Michael Wacha
G	10	30
GS	10	30
IP	54.0	188.2
W	4	9
SO	34	149
ERA	4.50	3.34
FIP	4.55	4.27
WHIP	1.24	1.10
K/9	5.7	7.1
BB/9	2.0	2.3
FIP−	109	102
WAR	0.5	2.3

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.
Statistic	Stephen Kolek	Michael Wacha
G	71	305
GS	29	290
IP	213.1	1,644.1
W	12	111
L	10	77
SV	0	0
SO	150	1,406
BB	55	500
ERA	4.13	3.91
WHIP	1.25	1.27
K/9	6.3	7.7
BB/9	2.3	2.7
HR/9	0.9	1.1
WAR	2.8	21.0

Stephen Kolek’s full profile →Michael Wacha’s full profile →

More head to heads

The same seasons, measured against somebody else.

Stephen Kolek vs

Michael Wacha vs

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.