Players / Player profile
AZ · P

Juan Morillo

Age 27 B/T R/R 6′1″, 215 lb Venezuela MLB debut 2025
40-man
  • Arizona’s roster as it stands late-inning relief · 59 IP · 0.9 WAR in the role
  • Trade read Available at a price: AZ sits on the contender line (51% playoff odds, within a projected win of 50%), so it could buy or sell; control through 2031.
Keystone Stuff 102 57th pct
2026 fWAR 1.6
Projected 2027 WAR 1.0 at 65 IP · 0.9 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,041 pitches

Keystone Stuff 102 Keystone Stuff: 102, 57th percentile
Keystone Location 97 Keystone Location: 97, 44th percentile
Keystone Pitching 103 Keystone Pitching: 103, 65th percentile
Run value (xRV) +1.63 Run value (xRV): +1.63, 97th percentile
Strikeout % 28.0% Strikeout %: 28.0%, 84th percentile
Walk % 8.7% Walk %: 8.7%, 51st percentile
Whiff % 29.4% Whiff %: 29.4%, 80th percentile
Chase % 35.9% Chase %: 35.9%, 94th percentile
Fastball velo 98.6 Fastball velo: 98.6, 98th percentile
Extension 6.4 ft Extension: 6.4 ft, 41st percentile
64.1 IP2.24 ERA2.71 FIP 47° arm3 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →4SCHSISL
RHP · arm angle 47° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Four-seam48% use48%98.616.3+4.610210031%+1.94
Changeup21% use21%92.57.6+15.6949433%+1.72
Sinker20% use20%98.612.6+13.610510216%+2.70
Slider12% use12%84.8−7.3−9.01059143%−1.53

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

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
46Luke Weaver PIT · ’931051.40.7Signed $12.5M
46Ryne Stanek STL · ’911020.0−0.1Free agent
40Jonathan Bowlan PHI · ’961140.80.5Pre-arb
40Bradgley Rodriguez SD · ’031031.61.1Pre-arb
40Lucas Erceg KC · ’9598−0.50.3Arb

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 57%
47% zone
Changeup 32%
28% zone
Slider 7%
43% 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 1.0 WAR Pre-arb $780K*
2028 0.9 WAR Pre-arb $803K*
2029 0.9 WAR Arbitration $2.4M*
2030 0.8 WAR Arbitration $4.1M*

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2025AAAAAAReno Aces262121 IP 21 IP · 2.57 ERA · 22.2% K · 10.0% BB
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.