Players · F · Pitcher · 2026

Jason Foley

San Francisco Giants National League West

Age: 31
B/T: R/R
Height: 6' 4"
Weight: 215 lb
Number: #64

Born: November 1, 1995 in Manhasset, NY, United States
MLB debut: June 6, 2021
College: Sacred Heart
High school: Mepham
Salary, 2026: $2M

dbWAR: 3.5
IP: 24.0
ERA: 4.50
FIP: 4.27
K/9: 5.3
FIP−: 102

Jason Foley is a relief pitcher for the San Francisco Giants. In 2026 he struck out 14 batters over 24.0 innings across 22 appearances, going 3-2. His ERA of 4.50 is 7.7% higher than the league average of 4.18 — 18th of 25 on his team, and 337th of 538 among MLB pitchers with 20+ innings. Stripping out defence, his 4.27 FIP suggests the ERA was no fluke. He missed bats on 16.4% of swings (7.0% of every pitch he threw), walked 9.2% of the batters he faced and struck out 12.8%. His 0.1 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.

FIP4.27

K/95.3

WHIP1.54

WAR.1

WAR by season

Pitching

Standard and advanced, by season.


2026	SF	22	24.0	3	2	0	27	12	14	10	4.50	4.27	1.54	5.3	3.8	108	102	0.1
2024	DET	69	60.0	3	6	28	51	21	46	20	3.15	3.82	1.18	6.9	3.0	77	94	0.5
2023	DET	70	69.0	3	3	7	65	20	55	15	2.61	2.73	1.16	7.2	2.0	60	63	1.7
2022	DET	60	60.1	1	0	0	72	26	43	11	3.88	2.76	1.38	6.4	1.6	98	70	1.2
2021	DET	11	10.1	0	0	0	8	3	6	5	2.61	5.59	1.26	5.2	4.4	61	131	-0.1

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	57	47	16	1	9	5	.340	.439	.532	.413	8.8%
vs RHB	52	51	11	1	1	9	.216	.231	.314	.239	17.3%

Pitch sequencing

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

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SinkerSliderFour-seamSplitter

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Pitch arsenal

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

Season


Sinker	42.2%	174	95.6	2,123	48.9%	8.1%	41	.366	.824
Slider	26.2%	108	85.9	2,336	34.3%	19.1%	27	.222	.667
Four-Seam Fastball	17.0%	70	96.2	2,184	30.0%	27.6%	15	.333	1.012
Splitter	14.6%	60	89.1	1,002	28.3%	22.2%	15	.067	.411

Jason Foley'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.

Ryan ThompsonAZ

ERA: 4.43
FIP: 3.82
SO: 29
WAR: 0.4

Ryan BoruckiSF

ERA: 4.94
FIP: 4.88
SO: 15
WAR: -0.1

Connor SeaboldDET

ERA: 5.25
FIP: 4.27
SO: 20
WAR: 0.1

Keegan AkinBAL

ERA: 5.68
FIP: 4.37
SO: 17
WAR: 0.1

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.