TOR · P

Jameson Taillon

Age 34 B/T R/R 6′5″, 230 lb USA MLB debut 2016

40-man

Free agent est. 1 yr × $1.3M ($685K–$3M)
Injured list 2026: Right elbow inflammation (Sep 5–Sep 28)

Keystone Stuff 93 18th pct

2026 fWAR −1.0

Projected 2027 WAR 0.0 Keystone Marcel+ at 102 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,443 pitches

Keystone Stuff 93

Keystone Location 102

Keystone Pitching 95

Run value (xRV) −1.44

Strikeout % 20.5%

Walk % 8.6%

Whiff % 26.5%

Chase % 30.1%

Fastball velo 91.8

Extension 6.8 ft

86.0 IP5.65 ERA6.60 FIP 45° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 45° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam27% use	27%	91.8	18.4	+5.5	91	106	23%	−1.93
Cutter19% use	19%	86.3	8.9	−6.2	100	94	26%	−3.21
Sweeper16% use	16%	80.2	−0.9	−15.5	99	111	34%	+3.55
Changeup16% use	16%	84.5	6.8	+15.7	101	102	31%	−0.85
Curveball11% use	11%	79.1	−9.8	−8.5	86	85	24%	−3.18
Sinker10% use	10%	91.9	14.4	+13.0	86	99	15%	−4.08

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
68	Hayden Wesneski HOU · ’97	90	1.2	1.1	Arb
55	Ryan Gusto MIA · ’99	97	1.0	1.1	—
53	Cristian Javier HOU · ’97	101	0.3	0.7	Signed $21.4M
53	Mitch Keller PIT · ’96	93	1.0	1.3	Signed $18.4M
50	Jake Irvin WSH · ’97	98	0.5	0.4	Arb

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%

47% zone

Changeup 27%

28% zone

Curveball 19%

33% zone

Cutter 14%

44% 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 0.0 WAR Free agent

2028 −0.2 WAR Free agent

2029 −0.5 WAR Free agent

2030 −0.7 WAR Free agent

A pending free agent: no club controls his 2027. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026A+	A+	South Bend Cubs	34	1	3.1 IP	3.1 IP · 2.70 ERA · 14.3% K · 0.0% BB
2026AAA	AAA	Buffalo Bisons	34	2	8 IP	8 IP · 4.50 ERA · 16.7% K · 10.0% BB
2025AAA	AAA	Iowa Cubs	33	4	16.2 IP	16.2 IP · 5.94 ERA · 23.0% K · 4.1% BB