Head to head · 2026 pitching

Cionel Pérez vs Chris Roycroft

So far in 2026 Cionel Pérez 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.

Cionel Pérez NYM

Chris Roycroft TB

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	Cionel Pérez	Chris Roycroft
G	37	25
GS	2	0
IP	42.1	36.1
W	4	2
SO	42	25
ERA	4.89	6.19
FIP	4.47	6.60
WHIP	1.46	1.79
K/9	8.9	6.2
BB/9	3.6	4.2
FIP−	107	158
WAR	0.1	-0.8

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	Cionel Pérez	Chris Roycroft
G	294	72
GS	2	0
IP	279.1	91.1
W	19	4
L	9	5
SV	6	1
SO	260	73
BB	146	46
ERA	4.32	5.81
WHIP	1.48	1.65
K/9	8.4	7.2
BB/9	4.7	4.5
HR/9	0.8	1.3
WAR	1.8	-0.5

Cionel Pérez’s full profile →Chris Roycroft’s full profile →

More head to heads

The same seasons, measured against somebody else.

Cionel Pérez vs

Chris Roycroft 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.