Head to head · 2026 pitching

David Peterson vs Bryan Woo

So far in 2026 Bryan Woo 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.

David Peterson NYM

Bryan Woo SEA

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	David Peterson	Bryan Woo
G	30	29
GS	21	29
IP	137.1	167.2
W	8	12
SO	124	167
ERA	5.11	3.92
FIP	4.06	3.27
WHIP	1.55	1.08
K/9	8.1	9.0
BB/9	4.1	1.9
FIP−	97	78
WAR	1.6	3.6

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	David Peterson	Bryan Woo
G	161	99
GS	136	99
IP	760.0	563.1
W	45	40
L	38	24
SV	1	0
SO	738	559
BB	324	116
ERA	4.30	3.42
WHIP	1.41	1.01
K/9	8.7	8.9
BB/9	3.8	1.9
HR/9	0.9	1.1
WAR	10.4	10.4

David Peterson’s full profile →Bryan Woo’s full profile →

More head to heads

The same seasons, measured against somebody else.

David Peterson vs

Bryan Woo 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.