Head to head · 2025 pitching

José Berríos vs Merrill Kelly

In 2025 Merrill Kelly has been worth 2.0 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.

José Berríos TOR

Merrill Kelly AZ

2025 pitching. The stronger figure in each row is highlighted — for ERA, FIP, WHIP and walks that is the lower one.
Statistic	José Berríos	Merrill Kelly
G	31	32
GS	30	32
IP	166.0	184.0
W	9	12
SO	138	167
ERA	4.17	3.52
FIP	4.65	3.76
WHIP	1.30	1.11
K/9	7.5	8.2
BB/9	3.0	2.3
FIP−	112	90
WAR	1.1	3.1

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	José Berríos	Merrill Kelly
G	275	200
GS	273	200
IP	1,571.2	1,165.0
W	108	74
L	82	67
SV	0	0
SO	1,481	1,022
BB	473	369
ERA	4.08	3.93
WHIP	1.24	1.23
K/9	8.5	7.9
BB/9	2.7	2.9
HR/9	1.3	1.2
WAR	19.7	15.0

José Berríos’s full profile →Merrill Kelly’s full profile →

More head to heads

The same seasons, measured against somebody else.

José Berríos vs

Merrill Kelly 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.