Players / Player profile
MIA · P

Sandy Alcantara

Age 31 B/T R/R 6′5″, 200 lb Dominican Republic MLB debut 2017
40-man Dead-weight pitch
  • Free agent est. 3 yr × $16.4M ($12M–$25M) if his club option is declined · +1.0 wins to Pittsburgh’s Winter Plan as rotation depth
    1 caution
    • His $21.0M club option for 2027 is expected to be declined (projected value below it); the decision comes about five days after the World Series.
Keystone Stuff 95 29th pct
2026 fWAR 3.2
Projected 2027 WAR 2.1 Keystone Marcel+ at 194 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 3,293 pitches

Keystone Stuff 95 Keystone Stuff: 95, 29th percentile
Keystone Location 101 Keystone Location: 101, 59th percentile
Keystone Pitching 99 Keystone Pitching: 99, 48th percentile
Run value (xRV) +0.52 Run value (xRV): +0.52, 72nd percentile
Strikeout % 17.1% Strikeout %: 17.1%, 14th percentile
Walk % 6.6% Walk %: 6.6%, 83rd percentile
Whiff % 20.9% Whiff %: 20.9%, 16th percentile
Chase % 31.1% Chase %: 31.1%, 56th percentile
Fastball velo 97.4 Fastball velo: 97.4, 89th percentile
Extension 6.0 ft Extension: 6.0 ft, 16th percentile
214.0 IP3.87 ERA4.08 FIP 33° arm3 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →SICH4SFCSTSLCU
RHP · arm angle 33° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Sinker26% use26%97.38.0+17.110010512%+0.86
Changeup21% use21%90.82.2+16.79510228%+0.41
Four-seam18% use18%97.513.4+12.6809921%−1.00
Cutter15% use15%90.05.9−1.31019524%+1.36
Sweeper9% use9%84.11.0−12.11089623%+0.56
Slider7% use7%85.03.2−4.611010726%+1.92
Curveball4% use4%82.8−2.8−4.3948518%−0.04
Dead weight

Four-seam grades 80 and gets below-average expected results on 18% usage. Against righties, moving about 8 of every 100 pitches to the slider (110 Stuff), about 50% of his four-seams to them, is worth an estimated 1.0 runs per season, after a 50% haircut for diminishing returns. vs. righties: the slider is worth +1.8 runs per 100 pitches more, 2.5 standard errors (143 and 212 pitches; his own results against that side combined with Stuff and the league’s platoon split). His fastballs stay at 35%+.

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
58Brandon Sproat MIL · ’00940.10.7—
55Walbert Ureña LAA · ’04922.62.3Pre-arb
54Michael King SD · ’95942.62.1Player option $28.0M
52Brayan Bello BOS · ’99851.01.4Signed $8.7M
45Randy Vásquez SD · ’98951.41.2Pre-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

Changeup 25%
30% zone
Sinker 24%
55% zone
Four-seam 19%
51% zone
Cutter 15%
54% zone
Sweeper 8%
39% zone
Curveball 6%
33% zone
Slider 4%
47% 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 2.1 WAR Club option $21.0M
2028 1.8 WAR Free agent
2029 1.4 WAR Free agent
2030 0.8 WAR Free agent

His 2027 is a $21.0M club option, decided by Miami ≈ Nov 1–5. The Free-Agent Board expects it declined, so it prices him as a free agent. Contract Studio →

ABS challenges · 2026

Baseball Savant

As pitcher 0% 0/1 won · 0.0 runs
Keystone is an independent portfolio project. It is not affiliated with Major League Baseball or any club. Data: MLB Stats API, Baseball Savant, FanGraphs. Used under their terms for individual, non-commercial use.