Players / Player profile
TB · P

Freddy Peralta

Age 30 B/T R/R 6′0″, 198 lb Dominican Republic MLB debut 2018
40-man
  • Free agent est. 3 yr × $13.8M ($5M–$27M) · +1.1 wins to Pittsburgh’s Winter Plan as rotation depth
    1 caution
    • Strong October (1.08 ERA in 16.2 IP): the price model only sees the regular season, so the market may pay more.
Keystone Stuff 104 65th pct
2026 fWAR 1.9
Projected 2027 WAR 2.1 Keystone Marcel+ at 172 IP

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,959 pitches

Keystone Stuff 104 Keystone Stuff: 104, 65th percentile
Keystone Location 95 Keystone Location: 95, 32nd percentile
Keystone Pitching 102 Keystone Pitching: 102, 59th percentile
Run value (xRV) +0.06 Run value (xRV): +0.06, 46th percentile
Strikeout % 21.4% Strikeout %: 21.4%, 41st percentile
Walk % 8.6% Walk %: 8.6%, 53rd percentile
Whiff % 26.2% Whiff %: 26.2%, 59th percentile
Chase % 31.3% Chase %: 31.3%, 58th percentile
Fastball velo 94.3 Fastball velo: 94.3, 49th percentile
Extension 6.5 ft Extension: 6.5 ft, 55th percentile
169.0 IP4.42 ERA4.28 FIP 34° arm

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →4SCHCUSTSL
RHP · arm angle 34° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Four-seam53% use53%94.316.7+7.01079622%−0.13
Changeup23% use23%87.43.5+17.78710029%+0.05
Curveball13% use13%79.5−3.2−4.51049831%+1.33
Sweeper6% use6%82.46.2−10.11129725%+0.70
Slider4% use4%83.13.5−2.81047849%−2.17
Pitch idea (fragile)

Built from his own fastball (94.3 mph) plus the typical shape 41 pitchers with his slot (34°) throw: a cutter around 90.2 mph, 10.6″ rise, −4.5″ arm-side. On the same model it grades +10 against his curveball, his weakest pitch that breaks the same way (+5 to +15 across the production and three cross-fit models), about 114 on his curveball’s scale; the comps’ own cutters grade 98 at the median, so that sits above 98% of them. The fits disagree, so it isn’t queued.

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
52Michael Soroka AZ · ’97972.72.0Free agent
51Jack Leiter TEX · ’001030.51.2Pre-arb
49Brandon Pfaadt AZ · ’98962.22.0Signed $5.4M
47Cade Cavalli WSH · ’98993.92.8Signed $5.0M
46Paul Skenes PIT · ’021044.24.8Arb

Michael Soroka (similarity 52, 2.0 WAR projected for 2027) is a free agent this winter: a similar arsenal available without trading talent, at a free agent’s price. Opportunity Finder →

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 51%
45% zone
Changeup 27%
27% zone
Curveball 17%
33% zone
Slider 3%
30% 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 Free agent
2028 1.8 WAR Free agent
2029 1.4 WAR Free agent
2030 1.0 WAR Free agent

A pending free agent: no club controls his 2027. Contract Studio →

ABS challenges · 2026

Baseball Savant

As pitcher 50% 4/8 won · +0.1 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.