HOU · P

Peter Lambert

Age 29 B/T R/R 6′2″, 208 lb USA MLB debut 2019

40-man

Houston’s roster as it stands #2 starter · 130 IP · 1.4 WAR in the role
Trade read Available at a price: HOU 43% playoff odds; control through 2027.

Keystone Stuff 90 12th pct

2026 fWAR 2.4

Projected 2027 WAR 1.6 at 148 IP · 1.4 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,642 pitches

Keystone Stuff 90

Keystone Location 105

Keystone Pitching 92

Run value (xRV) +0.34

Strikeout % 23.2%

Walk % 8.9%

Whiff % 25.4%

Chase % 31.1%

Fastball velo 93.8

Extension 6.2 ft

155.2 IP3.82 ERA3.91 FIP 49° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 49° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam31% use	31%	93.9	17.6	+7.9	89	106	26%	+0.12
Changeup24% use	24%	86.9	8.4	+13.2	91	101	33%	+0.84
Slider11% use	11%	85.6	1.7	−3.2	106	113	25%	−0.09
Sinker10% use	10%	93.5	12.2	+15.1	94	91	9%	+0.34
Cutter10% use	10%	91.6	12.1	−1.1	88	105	16%	+0.32
Sweeper8% use	8%	82.8	−1.8	−15.9	103	103	31%	+1.07
Slurve5% use	5%	80.2	−12.5	−14.9	92	94	18%	−0.40

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
63	Zebby Matthews MIN · ’00	92	0.7	1.1	—
63	Casey Mize SD · ’97	90	2.3	2.1	Free agent
62	Keider Montero DET · ’00	92	2.5	1.7	Pre-arb
62	Dean Kremer MIN · ’96	87	0.5	1.1	Arb
61	Mike Burrows HOU · ’99	90	−0.4	0.5	Pre-arb

Casey Mize (similarity 63, 2.1 WAR projected for 2027) is a free agent this winter: a similar arsenal available without trading talent, at a free agent’s price. Opportunity Finder →

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 33%

49% zone

Changeup 32%

30% zone

Cutter 14%

48% zone

Slider 10%

44% zone

Slurve 8%

41% 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 1.6 WAR Arbitration $4.4M*

2028 1.4 WAR Free agent

2029 1.2 WAR Free agent

2030 0.9 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
2026AAA	AAA	Sugar Land Space Cowboys	29	3	14.2 IP	14.2 IP · 1.84 ERA · 20.3% K · 5.1% BB