SEA · P

Bryan Woo

Age 26 B/T R/R 6′2″, 205 lb USA MLB debut 2023

40-man

Seattle’s roster as it stands #1 starter · 144 IP · 2.9 WAR in the role
Trade read Unlikely to be traded: Young, controllable regular (age 27, control through 2029): the kind of player clubs build around.

Keystone Stuff 110 83rd pct

2026 fWAR 4.1

Projected 2027 WAR 3.5 at 175 IP · 2.9 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,667 pitches

Keystone Stuff 110

Keystone Location 111

Keystone Pitching 116

Run value (xRV) +0.35

Strikeout % 24.6%

Walk % 5.5%

Whiff % 25.2%

Chase % 34.2%

Fastball velo 96.0

Extension 6.4 ft

173.0 IP4.01 ERA3.24 FIP 24° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 24° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam47% use	47%	96.1	14.4	+10.7	111	111	26%	+0.14
Sinker19% use	19%	95.9	5.6	+16.2	101	104	12%	+0.05
Slider13% use	13%	87.1	1.7	−2.4	103	104	33%	−0.29
Sweeper12% use	12%	84.5	3.5	−10.5	107	102	37%	+1.66
Changeup6% use	6%	89.6	2.8	+15.7	94	102	19%	+1.81
Curveball3% use	3%	83.0	−5.6	−6.0	104	88	40%	+0.09

No mix change or new pitch clears its bar. The arsenal is efficient for its shapes.

Most similar pitchers

Pitches like Woo: same hand, shape, slot and mix

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
51	Bubba Chandler PIT · ’02	103	2.0	2.2	Pre-arb
50	Eury Pérez MIA · ’03	112	2.4	2.6	Arb
50	Troy Melton DET · ’00	101	1.6	1.5	Pre-arb
50	George Kirby SEA · ’98	101	2.5	2.6	Arb
50	Jack Leiter TEX · ’00	103	0.5	1.2	Pre-arb

Same-handed pitchers nearest on fastball velocity and shape, arm angle, extension, pitch mix, secondary shapes, Stuff, whiff rate and workload. 2026 regulars only.

Pitch locations · 2026

Where each pitch finishes, by batter side

Four-seam 53%

51% zone

Slider 19%

35% zone

Changeup 10%

35% zone

Sinker 9%

50% zone

Sweeper 5%

33% zone

Curveball 3%

28% zone

Where each pitch finishes, catcher’s view. The bar marks the batter’s side; the box is an average strike zone. Pitches with 40+ thrown to this side.

Contract & projection

Club control (RosterResource) · Keystone projected WAR

2027 3.5 WAR Arbitration $5.7M*

2028 3.5 WAR Arbitration $10.9M*

2029 3.4 WAR Arbitration $18.6M*

2030 3.3 WAR Free agent

* projected arbitration or minimum salary. Contract Studio →

ABS challenges · 2026

Baseball Savant

As pitcher 100% 1/1 won · +0.1 runs