TB · P

Steven Matz

Age 35 B/T R/L 6′2″, 205 lb USA MLB debut 2015

40-man

Tampa Bay’s roster as it stands on the 40-man, off the 26-man (call-up depth)
Injured list 2026: Left ankle sprain (Jun 25–Jul 25)
Trade read Unlikely to be traded: Signed in Dec 2025 (2 yr, $15M (2026-27)): clubs rarely move a player they just committed to.

Keystone Stuff 101 52nd pct

2026 fWAR 0.0

Projected 2027 WAR 0.1 Keystone Marcel+ at 57 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,345 pitches

Keystone Stuff 101

Keystone Location 110

Keystone Pitching 109

Run value (xRV) −0.60

Strikeout % 17.8%

Walk % 7.3%

Whiff % 20.8%

Chase % 29.1%

Fastball velo 93.6

Extension 6.6 ft

80.1 IP5.49 ERA5.02 FIP 33° arm1 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

LHP · arm angle 33° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Sinker50% use	50%	93.6	11.3	+16.2	103	111	19%	−0.53
Changeup28% use	28%	83.0	0.7	+15.1	100	102	23%	−1.36
Curveball13% use	13%	78.8	−10.9	−11.4	91	102	26%	+1.88
Slider8% use	8%	82.4	−2.2	−9.8	102	102	19%	−2.40

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
48	Connelly Early WSH · ’02	104	0.8	1.5	Pre-arb
47	Jake Bennett BOS · ’00	95	2.3	2.1	Pre-arb
41	DL Hall MIL · ’98	111	0.3	0.4	Arb
38	Parker Messick CLE · ’00	96	4.9	3.9	Pre-arb
36	Framber Valdez DET · ’93	96	2.0	2.2	Signed $47.5M

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

Sinker 46%

55% zone

Changeup 34%

30% zone

Curveball 14%

51% zone

Slider 6%

49% 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 0.1 WAR Guaranteed $7.5M

2028 0.0 WAR Free agent

2029 −0.2 WAR Free agent

2030 −0.3 WAR Free agent

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AAA	AAA	Durham Bulls	35	5	6 IP	6 IP · 4.50 ERA · 17.9% K · 7.1% BB