Head to head · 2026 pitching

Ryan Feltner vs Mitch Keller

So far in 2026 Mitch Keller has been worth 0.9 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.

Ryan Feltner COL

Mitch Keller PIT

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	Ryan Feltner	Mitch Keller
G	24	22
GS	22	22
IP	116.2	115.2
W	6	6
SO	88	89
ERA	5.71	5.29
FIP	5.13	4.54
WHIP	1.53	1.37
K/9	6.8	6.9
BB/9	3.9	3.3
FIP−	123	109
WAR	0.2	1.1

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.
Statistic	Ryan Feltner	Mitch Keller
G	92	187
GS	89	185
IP	456.1	993.2
W	15	48
L	36	73
SV	0	0
SO	379	926
BB	182	341
ERA	5.33	4.60
WHIP	1.46	1.38
K/9	7.5	8.4
BB/9	3.6	3.1
HR/9	1.3	1.1
WAR	3.5	13.7

Ryan Feltner’s full profile →Mitch Keller’s full profile →

More head to heads

The same seasons, measured against somebody else.

Ryan Feltner vs

Mitch Keller 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.