MIN · P

Ron Marinaccio

Age 31 B/T R/R 6′2″, 205 lb USA MLB debut 2022

Left Pittsburgh Claimed off waivers Aug 6, 2026; now with Minnesota.

Keystone Stuff 104 65th pct

2026 fWAR −0.5

Projected 2027 WAR −0.1 Keystone Marcel+ at 60 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,042 pitches

Keystone Stuff 104

Keystone Location 84

Keystone Pitching 89

Run value (xRV) −0.57

Strikeout % 18.5%

Walk % 10.4%

Whiff % 25.3%

Chase % 25.7%

Fastball velo 93.7

Extension 6.7 ft

57.2 IP6.09 ERA5.68 FIP 27° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 27° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Four-seam43% use	43%	93.7	13.1	+14.1	107	94	26%	−0.71
Changeup27% use	27%	81.9	1.1	+18.0	97	76	25%	−0.53
Cutter21% use	21%	86.5	6.4	−2.1	97	92	24%	−0.59
Sweeper9% use	9%	81.9	4.6	−11.2	108	107	24%	0.00

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
52	AJ Blubaugh HOU · ’00	104	0.2	0.3	Pre-arb
42	Cole Sulser TB · ’90	100	0.6	0.2	Arb
39	Casey Legumina TB · ’97	105	0.4	0.2	Pre-arb
39	Raisel Iglesias ATL · ’90	92	1.1	0.5	Free agent
38	Logan Henderson MIL · ’02	104	2.4	2.5	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

Four-seam 45%

47% zone

Changeup 38%

20% zone

Cutter 13%

45% 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 —

2028 −0.2 WAR —

2029 −0.3 WAR —

2030 −0.4 WAR —

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevel	Level	Team	Age	G	PA / IP	PA / IP ·Line
2026AAA	AAA	St. Paul Saints	30	1	1 IP	1 IP · 27.00 ERA · 16.7% K · 0.0% BB
2025AAA	AAA	El Paso Chihuahuas	29	41	46.1 IP	46.1 IP · 5.05 ERA · 24.1% K · 9.9% BB