Players · L · Pitcher · 2026 regular season

Peter Lambert

Age: 29
B/T: R/R
Height: 6' 2"
Weight: 208 lb
Number: #38

Born: April 18, 1997 in San Dimas, CA, United States
MLB debut: June 6, 2019
Drafted: 2015, round 2
High school: San Dimas

Compare with…vs Sean Burke vs Hunter Brown vs José Soriano

dbWAR: 2.5
IP: 155.2
ERA: 3.82
FIP: 3.91
K/9: 8.9
FIP−: 94

Peter Lambert is a starting pitcher for the Houston Astros. In 2026 he struck out 154 batters over 155.2 innings across 29 appearances, 29 of them starts, going 8-10. His ERA of 3.82 was 8.7% lower than the league average of 4.18 — 7th of 20 on his team, and 229th of 539 among MLB pitchers with 20+ innings. Stripping out defence, his 3.91 FIP suggests the ERA was no fluke. He missed bats on 25.4% of swings (12.4% of every pitch he threw), walked 8.9% of the batters he faced and struck out 23.2%. His 2.3 dbWAR is built from that FIP rather than runs allowed, so it credits him for what he controls and not for the defence behind him.

League context

Percentile among qualified pitchers, 2026 regular season.

FIP3.91

K/98.9

WHIP1.25

WAR2.3

WAR by season

Pitching Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.


2026	HOU	29	29	155.2	8	10	136	66	154	59	3.82	3.91	1.25	8.9	3.4	91	94	2.3
2024	COL	28	3	61.1	2	5	73	39	50	29	5.72	4.54	1.66	7.3	4.3	140	111	0.2
2023	COL	25	11	87.1	3	7	93	52	71	28	5.36	5.44	1.39	7.3	2.9	124	126	-0.1
2021	COL	2	2	5.2	0	0	12	7	3	2	11.12	7.76	2.47	4.8	3.2	261	182	-0.1
2019	COL	19	19	89.1	3	7	119	72	57	36	7.25	5.97	1.74	5.7	3.6	161	132	-0.1

Batting Regular season

Standard and advanced, by season. Regular-season games only — postseason games are listed separately below.

																					Trend
2021	COL	2	2	0	0	0	0	0	1	.000	.000	.000	.000	.000	0.0%	50.0%	.000	-0.5	-111	-0.0
2019	COL	19	34	9	0	2	0	3	10	.321	.387	.321	.000	.500	8.8%	29.4%	.322	-0.0	89	0.5

Separate from the regular season

Postseason Postseason

Wild Card through World Series. These games are counted on their own: none of them are in the regular-season tables, career totals, league context, leaderboards or dbWAR on this page.

Postseason pitching

Postseason Peter Lambert's postseason pitching, by October and round. Not part of any regular-season figure on this page.
Season	Team	Round	G	GS	IP	W	L	SV	H	ER	HR	BB	SO	ERA	WHIP	K/9
2026 Post	HOU	Wild Card · through Sep 30	1	0	3.0	0	0	0	0	2	0	2	2	6.00	0.67	6.0

Box-score and rate statistics only. wOBA, wRC+, FIP and dbWAR are measured against a full league season, and a postseason is a few teams playing each other for a month, so they are not computed for October.

Platoon splits

How left- and right-handed hitters fare against him.

Season

Opponent batting by the side the hitter bats from, 2026. Counted from play-by-play, so totals can differ from the box-score season line by a plate appearance or two.
Split	PA	AB	H	HR	BB	SO	AVG	OBP	SLG	wOBA	K%
vs LHB	368	311	66	7	46	81	.212	.323	.312	.297	22.0%
vs RHB	296	275	70	10	13	73	.255	.302	.407	.312	24.7%

Pitch sequencing

What Peter Lambert throws in each count, and what he follows each pitch with. Select any cell for the breakdown.

ShowBatter

Four-seamChangeupSliderCutterSinkerSweeperSlurveCurveball

Select a count to see exactly what Peter Lambert throws in it.

Pitch arsenal

What he throws, how hard, how often it misses, and what hitters do with it.

Season


Four-Seam Fastball	31.5%	832	93.9	2,303	54.3%	26.0%	187	.230	.743
Changeup	23.7%	626	86.9	1,552	43.1%	33.3%	156	.231	.609
Slider	11.0%	290	85.6	2,634	42.8%	25.0%	58	.172	.600
Sinker	10.2%	270	93.5	2,194	42.2%	9.2%	67	.269	.648
Cutter	10.2%	269	91.6	2,326	50.9%	16.2%	57	.281	.759
Sweeper	7.8%	206	82.8	2,733	46.1%	30.5%	45	.244	.610
Slurve	5.3%	140	80.2	2,593	45.7%	18.4%	18	.111	.516

Peter Lambert's arsenal by usage. Velocity is average release speed in mph, spin in rpm, and whiff rate is misses per swing — the cleanest single measure of whether a pitch beats hitters. BAA and OPS are what hitters did against each pitch, credited to the one that ended the plate appearance, and are left blank under 15 at-bats.

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Similar players

Nearest 2026 seasons by command, run prevention and role, on rate statistics rather than totals.

José SorianoLAA

ERA: 3.91
FIP: 3.90
SO: 169
WAR: 2.5

Very close

Noah CameronKC

ERA: 4.11
FIP: 3.93
SO: 158
WAR: 2.9

Very close

Quinn MathewsSTL

ERA: 3.83
FIP: 3.83
SO: 46
WAR: 0.8

Very close

Tyler MahleSF

ERA: 3.99
FIP: 4.00
SO: 137
WAR: 2.1

Very close

How these are computed

wOBA uses linear weights measured from this season's own play-by-play rather than published constants, and wRC+ is park-adjusted against that same league. dbWAR is our own open implementation — not fWAR or bWAR — and the full derivation, including its simplifications, is on the methodology page.