HOU · P

Hayden Wesneski

Age 28 B/T R/R 6′3″, 210 lb USA MLB debut 2022

40-man

Houston’s roster as it stands bullpen · 75 IP · 0.8 WAR in the role
Injured list 2026: Recovery from right elbow surgery (Mar 25–Jul 29)
Trade read Available at a price: HOU 43% playoff odds; control through 2029.

Keystone Stuff 90 11th pct

2026 fWAR 1.2

Projected 2027 WAR 1.1 at 104 IP · 0.8 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 898 pitches

Keystone Stuff 90

Keystone Location 96

Keystone Pitching 91

Run value (xRV) +0.44

Strikeout % 18.7%

Walk % 8.1%

Whiff % 23.6%

Chase % 34.4%

Fastball velo 93.1

Extension 6.7 ft

61.0 IP3.25 ERA3.53 FIP 47° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 47° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Sweeper30% use	30%	81.5	−2.9	−19.5	105	100	38%	+0.78
Four-seam24% use	24%	93.5	13.7	+5.6	76	94	14%	−1.16
Sinker19% use	19%	92.5	8.6	+14.6	94	91	12%	+0.24
Cutter15% use	15%	89.5	6.7	−3.7	95	96	24%	+1.23
Changeup12% use	12%	86.2	4.9	+14.3	92	109	37%	+2.11

Weak pitch to watch

Four-seam grades 76 with below-average expected results; his sweeper grades 105. The best case is against righties: the sweeper is worth +1.5 runs per 100 pitches more, 1.8 standard errors (119 and 75 pitches), short of the 2 needed. No mix change until it clears.

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
68	Jameson Taillon TOR · ’91	93	−1.0	0.0	Free agent
64	Ryan Gusto MIA · ’99	97	1.0	1.1	—
62	Mitch Keller PIT · ’96	93	1.0	1.3	Signed $18.4M
58	Davis Martin CWS · ’97	88	2.6	1.8	Pre-arb
52	Will Warren NYY · ’99	102	2.2	2.0	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

Sweeper 28%

40% zone

Four-seam 28%

43% zone

Changeup 19%

39% zone

Cutter 17%

52% zone

Sinker 9%

46% 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 1.1 WAR Arbitration $2.7M*

2028 1.0 WAR Arbitration $4.0M*

2029 0.8 WAR Arbitration $4.7M*

2030 0.7 WAR Free agent

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AA	AA	Corpus Christi Hooks	28	1	4 IP	4 IP · 2.25 ERA · 18.8% K · 6.3% BB
2026AAA	AAA	Sugar Land Space Cowboys	28	3	13 IP	13 IP · 2.77 ERA · 30.9% K · 5.5% BB
2026ROK	ROK	FCL Astros	28	1	3 IP	3 IP · 0.00 ERA · 10.0% K · 0.0% BB