Players · M · Pitcher · 2026 regular season

Quinn Mathews

St. Louis Cardinals National League Central

Age: 26
B/T: L/L
Height: 6' 5"
Weight: 188 lb
Number: #60

Born: October 4, 2000 in Mission Viejo, CA, United States
MLB debut: August 1, 2026
Drafted: 2022, round 19
College: Stanford
High school: Aliso Niguel

Compare with…vs Peter Lambert vs Framber Valdez vs José Soriano

dbWAR: .8
IP: 49.1
ERA: 3.83
FIP: 3.83
K/9: 8.4
FIP−: 92

Quinn Mathews is a starting pitcher for the St. Louis Cardinals. In 2026 he struck out 46 batters over 49.1 innings across 9 appearances, 9 of them starts, going 2-4. His ERA of 3.83 was 8.4% lower than the league average of 4.18 — 7th of 16 on his team, and 233rd of 539 among MLB pitchers with 20+ innings. Stripping out defence, his 3.83 FIP suggests the ERA was no fluke. He missed bats on 26.6% of swings (12.1% of every pitch he threw), walked 9.5% of the batters he faced and struck out 21.8%. His 0.8 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.

FIP3.83

K/98.4

WHIP1.38

WAR.8

Pitching Regular season

Standard and advanced, by season. Regular-season games only.

																				Trend
2026	STL	9	9	49.1	2	4	0	48	21	46	20	3.83	3.83	1.38	8.4	3.6	92	92	0.8	—

Platoon splits

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

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	60	55	13	3	4	19	.236	.288	.455	.322	31.7%
vs RHB	151	130	35	2	16	27	.269	.347	.354	.318	17.9%

Pitch sequencing

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

ShowBatter

Four-seamSliderChangeupCurveballSinker

Select a count to see exactly what Quinn Mathews throws in it.

Pitch arsenal

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


Four-Seam Fastball	38.6%	335	93.4	2,242	46.9%	23.5%	71	.296	.798
Slider	22.6%	196	84.8	2,343	45.9%	26.0%	54	.185	.645
Changeup	15.8%	137	83.0	1,345	35.8%	43.1%	31	.290	.646
Curveball	13.4%	116	75.8	2,442	46.6%	20.9%	17	.294	.839
Sinker	9.6%	83	92.9	2,238	50.6%	17.6%	13	—	—

Quinn Mathews'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

Peter LambertHOU

ERA: 3.82
FIP: 3.91
SO: 154
WAR: 2.3

Very close

MacKenzie GoreTEX

ERA: 4.58
FIP: 3.87
SO: 174
WAR: 2.6

Very close

Shane BazBAL

ERA: 4.11
FIP: 3.63
SO: 154
WAR: 3.2

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.