Players / Player profile
COL · P

Zach Agnos

Age 26 B/T R/R 6′0″, 225 lb USA MLB debut 2025
40-man
  • Colorado’s roster as it stands bullpen · 60 IP · 0.1 WAR in the role
Keystone Stuff 87 8th pct
2026 fWAR 0.1
Projected 2027 WAR 0.1 at 79 IP · 0.1 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 1,502 pitches

Keystone Stuff 87 Keystone Stuff: 87, 8th percentile
Keystone Location 94 Keystone Location: 94, 32nd percentile
Keystone Pitching 88 Keystone Pitching: 88, 10th percentile
Run value (xRV) −0.79 Run value (xRV): −0.79, 10th percentile
Strikeout % 14.2% Strikeout %: 14.2%, 3rd percentile
Walk % 8.6% Walk %: 8.6%, 53rd percentile
Whiff % 21.1% Whiff %: 21.1%, 17th percentile
Chase % 32.0% Chase %: 32.0%, 66th percentile
Fastball velo 94.1 Fastball velo: 94.1, 44th percentile
Extension 6.1 ft Extension: 6.1 ft, 20th percentile
91.0 IP5.93 ERA4.57 FIP 39° arm2 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →4SFCSTSISLFS
RHP · arm angle 39° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Four-seam25% use25%94.414.5+6.8879915%−1.90
Cutter21% use21%91.89.1−1.39010016%−1.50
Sweeper17% use17%84.0−2.8−13.81009035%−0.12
Sinker14% use14%93.58.5+14.384993%−1.19
Slider12% use12%84.9−3.2−3.29910527%+1.58
Splitter11% use11%86.11.7+9.9908042%−0.07

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

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
55Ryan Gusto MIA · ’99971.01.1—
52Davis Martin CWS · ’97882.61.8Pre-arb
52Mitch Keller PIT · ’96931.01.3Signed $18.4M
51Juan Mejia COL · ’00910.50.6—
51Erick Fedde CWS · ’9384−0.10.2Free agent

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 28%
45% zone
Cutter 20%
49% zone
Splitter 15%
19% zone
Slider 14%
40% zone
Sweeper 13%
47% zone
Sinker 10%
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 0.1 WAR —
2028 0.2 WAR —
2029 0.2 WAR —
2030 0.2 WAR —

Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2025AAAAAAAlbuquerque Isotopes241012 IP 12 IP · 2.25 ERA · 30.4% K · 8.7% 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.