Players · W · Pitcher · 2026

Jacob Waguespack

Age: 33
B/T: R/R
Height: 6' 6"
Weight: 228 lb
Number: #58

Born: November 5, 1993 in Prairieville, LA, United States
MLB debut: May 27, 2019
Drafted: 2012, round 37
College: Mississippi
High school: Dutchtown

dbWAR: .6
IP: 45.2
ERA: 2.56
FIP: 4.68
K/9: 6.5
FIP−: 112

Jacob Waguespack is a relief pitcher for the Detroit Tigers. In 2026 he struck out 33 batters over 45.2 innings across 34 appearances, going 1-2. His ERA of 2.56 is 38.7% lower than the league average of 4.18 — the best on his team, and 51st of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 4.68 FIP suggests that his ERA had some help behind him. He missed bats on 25.4% of swings (11.9% of every pitch he threw), walked 10.2% of the batters he faced and struck out 18.6%. His 0.0 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.

FIP4.68

K/96.5

WHIP0.90

WAR.0

WAR by season

Pitching

Standard and advanced, by season.


2026	DET	34	1	45.2	1	2	23	13	33	18	2.56	4.68	0.90	6.5	3.5	61	112	0.0
2024	TB	4	1	10.0	0	0	13	6	11	10	5.40	5.27	2.30	9.9	9.0	132	129	-0.1
2020	TOR	11	0	17.2	0	0	27	16	16	9	8.15	4.72	2.04	8.2	4.6	183	106	0.1
2019	TOR	16	13	78.0	5	5	75	38	63	29	4.38	4.91	1.33	7.3	3.3	97	109	0.5

Batting

Standard and advanced, by season.

																					Trend
2019	TOR	2	3	0	0	0	0	1	2	.000	.333	.000	.000	—	33.3%	66.7%	.237	-0.2	42	0.0	—

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	83	71	11	1	9	15	.155	.250	.197	.219	18.1%
vs RHB	94	82	12	5	9	18	.146	.245	.329	.260	19.1%

Pitch sequencing

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

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Four-seamCutterChangeupCurveball

Select a count to see exactly what Jacob Waguespack throws in it.

Pitch arsenal

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

Season


Four-Seam Fastball	42.7%	277	92.9	2,134	48.0%	18.8%	67	.164	.586
Cutter	31.6%	205	86.8	1,948	43.4%	23.0%	44	.182	.680
Changeup	19.8%	128	84.5	1,573	35.9%	42.6%	39	.077	.177
Curveball	5.9%	38	76.5	2,236	52.6%	36.4%	3	—	—

Jacob Waguespack'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.

Head to head

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Jacob Waguespack

Similar players

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

Julian GarciaCIN

ERA: 3.13
FIP: 4.60
SO: 41
WAR: 0.0

Grant AndersonMIL

ERA: 3.36
FIP: 4.32
SO: 52
WAR: 0.3

John KingMIA

ERA: 3.99
FIP: 4.87
SO: 33
WAR: -0.1

Brock StewartLAD

ERA: 2.45
FIP: 3.80
SO: 24
WAR: 0.3

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.