Head to head · 2026 pitching

Cionel Pérez vs Landen Roupp

So far in 2026 Landen Roupp has been worth 2.6 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

Landen Roupp SF

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	Landen Roupp
G	37	29
GS	2	29
IP	42.1	155.0
W	4	9
SO	42	143
ERA	4.89	4.01
FIP	4.47	3.73
WHIP	1.46	1.30
K/9	8.9	8.3
BB/9	3.6	4.4
FIP−	107	89
WAR	0.1	2.7

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	Landen Roupp
G	294	74
GS	2	55
IP	279.1	312.0
W	19	17
L	9	23
SV	6	0
SO	260	292
BB	146	146
ERA	4.32	3.87
WHIP	1.48	1.37
K/9	8.4	8.4
BB/9	4.7	4.2
HR/9	0.8	0.7
WAR	1.8	5.0

Cionel Pérez’s full profile →Landen Roupp’s full profile →

More head to heads

The same seasons, measured against somebody else.

Cionel Pérez vs

Landen Roupp 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.