AZ · P

Dennis Santana

Age 30 B/T R/R 6′2″, 202 lb Dominican Republic MLB debut 2018

40-man

Left Pittsburgh Released Jul 29, 2026; now with Arizona.
Free agent est. 1 yr × $2.8M ($1M–$7M) · +0.2 wins to Pittsburgh’s Winter Plan in the bullpen

Keystone Stuff 89 10th pct

2026 fWAR −0.3

Projected 2027 WAR 0.3 Keystone Marcel+ at 65 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 929 pitches

Keystone Stuff 89

Keystone Location 101

Keystone Pitching 89

Run value (xRV) −0.34

Strikeout % 19.6%

Walk % 10.0%

Whiff % 25.8%

Chase % 33.5%

Fastball velo 94.0

Extension 6.0 ft

56.2 IP5.56 ERA5.15 FIP 30° arm3 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

RHP · arm angle 30° · how to read

Pitch	Use	Velo	IVB	HB	Stuff	Loc	Whiff	xRV/100
Slider36% use	36%	85.5	2.7	−1.8	98	109	37%	+0.79
Four-seam27% use	27%	94.1	15.0	+11.9	92	91	17%	−1.39
Changeup14% use	14%	88.0	5.1	+17.3	86	108	29%	−2.04
Sinker12% use	12%	93.9	8.5	+17.0	87	87	11%	−0.04
Cutter11% use	11%	89.9	9.9	−0.2	90	101	22%	+0.32

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

Most similar pitchers

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

Similarity	Player	Stuff	’26 WAR	’27 proj	2027
58	Travis Adams MIN · ’00	90	0.1	0.1	—
56	Enyel De Los Santos HOU · ’95	98	0.3	0.1	Free agent
52	JT Brubaker SF · ’93	85	0.1	0.1	Free agent
52	Taylor Clarke AZ · ’93	86	0.5	0.3	Free agent
48	Alex Lange KC · ’95	85	−1.1	−0.5	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 32%

44% zone

Slider 28%

39% zone

Changeup 22%

33% zone

Cutter 13%

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 0.3 WAR Free agent

2028 0.2 WAR Free agent

2029 0.1 WAR Free agent

2030 0.0 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
2026AAA	AAA	Reno Aces	30	2	1.2 IP	1.2 IP · 16.20 ERA · 33.3% K · 0.0% BB

ABS challenges · 2026

Baseball Savant

As pitcher 0% 0/1 won · 0.0 runs