Players / Player profile
DET · P

Keider Montero

Age 26 B/T R/R 6′1″, 145 lb Venezuela MLB debut 2024
40-man
  • Detroit’s roster as it stands #3 starter · 134 IP · 1.4 WAR in the role
  • Trade read Available at a price: DET sits on the contender line (52% playoff odds, within a projected win of 50%), so it could buy or sell; control through 2030.
Keystone Stuff 92 17th pct
2026 fWAR 2.5
Projected 2027 WAR 1.7 at 157 IP · 1.4 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 2,304 pitches

Keystone Stuff 92 Keystone Stuff: 92, 17th percentile
Keystone Location 106 Keystone Location: 106, 79th percentile
Keystone Pitching 93 Keystone Pitching: 93, 25th percentile
Run value (xRV) +0.59 Run value (xRV): +0.59, 76th percentile
Strikeout % 17.1% Strikeout %: 17.1%, 14th percentile
Walk % 5.9% Walk %: 5.9%, 90th percentile
Whiff % 18.4% Whiff %: 18.4%, 4th percentile
Chase % 26.9% Chase %: 26.9%, 14th percentile
Fastball velo 94.4 Fastball velo: 94.4, 51st percentile
Extension 6.3 ft Extension: 6.3 ft, 38th percentile
155.0 IP3.48 ERA3.98 FIP 42° arm1 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →4SSISLKCCH
RHP · arm angle 42° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Four-seam30% use30%94.316.4+6.09210514%+0.66
Sinker23% use23%94.611.4+15.29810210%+0.01
Slider20% use20%86.02.0−6.210310928%+1.66
Knuckle curve14% use14%80.3−7.2−10.99010119%−0.80
Changeup14% use14%87.09.1+15.0859826%+1.27

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

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
68Zebby Matthews MIN · ’00920.71.1—
62Peter Lambert HOU · ’97902.41.6Arb
62Max Scherzer TOR · ’84970.30.1Free agent
60Reynaldo López ATL · ’94940.61.0Signed $8.0M
60Mike Burrows HOU · ’9990−0.40.5Pre-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

Four-seam 38%
49% zone
Changeup 20%
42% zone
Slider 16%
49% zone
Knuckle curve 15%
47% zone
Sinker 11%
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 1.7 WAR Pre-arb $780K*
2028 1.8 WAR Arbitration $3.6M*
2029 1.8 WAR Arbitration $5.7M*
2030 1.7 WAR Arbitration $9.1M*

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAAAAAToledo Mud Hens2514 IP 4 IP · 0.00 ERA · 21.4% K · 7.1% BB
2025AAAAAAToledo Mud Hens241042.2 IP 42.2 IP · 5.91 ERA · 23.6% K · 8.2% 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.