ATH · P

Luis Medina

Age 27 B/T R/R 6′1″, 175 lb Dominican Republic MLB debut 2023

40-man

The Athletics’ roster as it stands late-inning relief · 60 IP · 0.6 WAR in the role
Trade read Available at a price: ATH 27% playoff odds; control through 2029.

Keystone Stuff 103 60th pct

2026 fWAR 0.9

Projected 2027 WAR 0.6 at 67 IP · 0.6 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,270 pitches

Keystone Stuff 103

Keystone Location 82

Keystone Pitching 88

Run value (xRV) +0.24

Strikeout % 29.3%

Walk % 12.3%

Whiff % 32.4%

Chase % 26.4%

Fastball velo 97.5

Extension 6.1 ft

73.0 IP3.08 ERA3.57 FIP 40° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 40° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam29% use	29%	97.7	15.6	+7.4	94	91	24%	−0.51
Sinker26% use	26%	97.3	11.1	+15.2	100	99	8%	−0.53
Slider17% use	17%	86.6	1.3	−9.3	112	86	47%	+1.89
Changeup15% use	15%	90.3	1.6	+10.7	113	70	60%	+1.02
Curveball13% use	13%	81.2	−12.3	−9.1	94	87	52%	+0.47

Weak pitch to watch

Four-seam grades 94 with below-average expected results; his changeup grades 113. The best case is against lefties: the changeup is worth +0.7 runs per 100 pitches more, 0.9 standard errors (141 and 191 pitches), short of the 2 needed. No mix change until it clears.

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
70	Chase Silseth TEX · ’00	98	0.4	0.3	Pre-arb
64	Ryne Stanek STL · ’91	102	0.0	−0.1	Free agent
55	Seranthony Domínguez SEA · ’94	111	0.0	0.2	Signed $10.5M
52	Anthony Nunez BAL · ’01	109	0.6	0.6	—
52	Jack Perkins ATH · ’99	103	0.8	0.7	Pre-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

Sinker 33%

55% zone

Slider 28%

33% zone

Four-seam 26%

48% zone

Changeup 7%

31% zone

Curveball 6%

41% 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 0.6 WAR Arbitration $2.3M*

2028 0.6 WAR Arbitration $3.0M*

2029 0.6 WAR Arbitration $3.5M*

2030 0.5 WAR Free agent

* projected arbitration or minimum salary. Contract Studio →