Players / Player profile
SD · P

Wandy Peralta

Age 35 B/T L/L 6′0″, 227 lb Dominican Republic MLB debut 2016
40-man
  • San Diego’s roster as it stands bullpen · 53 IP · 0.1 WAR in the role
  • Trade read Available at a price: SD sits near the seller line (28% playoff odds, within a projected win of 30%); control through 2027.
Keystone Stuff 95 29th pct
2026 fWAR 0.4
Projected 2027 WAR 0.1 at 61 IP · 0.1 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,224 pitches

Keystone Stuff 95 Keystone Stuff: 95, 29th percentile
Keystone Location 102 Keystone Location: 102, 64th percentile
Keystone Pitching 100 Keystone Pitching: 100, 53rd percentile
Run value (xRV) −0.02 Run value (xRV): −0.02, 41st percentile
Strikeout % 15.6% Strikeout %: 15.6%, 7th percentile
Walk % 7.2% Walk %: 7.2%, 75th percentile
Whiff % 22.3% Whiff %: 22.3%, 26th percentile
Chase % 33.2% Chase %: 33.2%, 77th percentile
Fastball velo 96.1 Fastball velo: 96.1, 75th percentile
Extension 5.7 ft Extension: 5.7 ft, 5th percentile
77.1 IP3.61 ERA3.99 FIP 42° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →SICHSL4S
LHP · arm angle 42° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Sinker42% use42%96.09.2+15.410110215%+0.88
Changeup34% use34%89.53.8+16.19510732%−0.52
Slider15% use15%89.36.0−0.41009828%−0.03
Four-seam9% use9%96.414.5+9.980788%−2.19

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

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
58Daniel Lynch IV KC · ’96980.50.2Arb
33Brock Burke CIN · ’961000.80.5Free agent
30José Suarez ATH · ’98950.60.4Free agent
28José A. Ferrer SEA · ’001160.10.6Arb
26Tim Mayza PHI · ’92940.80.3Signed $2.8M

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 49%
29% zone
Sinker 33%
53% zone
Four-seam 10%
19% zone
Slider 8%
40% 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 $4.5M
2028 0.0 WAR Free agent
2029 −0.2 WAR Free agent
2030 −0.3 WAR Free agent

Contract Studio →

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.