Players / Player profile
WSH · P

Mitchell Parker

Age 27 B/T L/L 6′4″, 239 lb USA MLB debut 2024
40-man
  • Washington’s roster as it stands #5 starter · 108 IP · 0.6 WAR in the role
  • Injured list Ended 2026 on the 60-day IL: Left elbow inflammation (since Jun 29)
  • Trade read Available at a price: WSH 22% playoff odds; control through 2030.
Keystone Stuff 97 36th pct
2026 fWAR −0.5
Projected 2027 WAR 0.6 at 106 IP · 0.6 in his 2027 role

Pitching · 2026 percentiles

vs. MLB pitchers with 500+ pitches · 663 pitches

Keystone Stuff 97 Keystone Stuff: 97, 36th percentile
Keystone Location 103 Keystone Location: 103, 70th percentile
Keystone Pitching 99 Keystone Pitching: 99, 49th percentile
Run value (xRV) −0.78 Run value (xRV): −0.78, 11th percentile
Strikeout % 19.1% Strikeout %: 19.1%, 27th percentile
Walk % 7.3% Walk %: 7.3%, 72nd percentile
Whiff % 28.1% Whiff %: 28.1%, 73rd percentile
Chase % 32.1% Chase %: 32.1%, 68th percentile
Fastball velo 93.6 Fastball velo: 93.6, 36th percentile
Extension 6.8 ft Extension: 6.8 ft, 82nd percentile
39.2 IP6.58 ERA5.47 FIP 57° arm1 SV

Arsenal & Pitch Lab

Movement normalized to arm side · Keystone Stuff by pitch

−20−20−10−100010102020← Glove sideArm side →Rise (IVB, in) →SL4SCU
LHP · arm angle 57° · how to read
PitchUseVeloIVBHBStuffLocWhiffxRV/100
Slider50% use50%83.20.1−8.010510834%−0.25
Four-seam34% use34%93.618.0+5.4869518%−2.07
Curveball16% use16%79.0−8.4−8.7999929%+0.11

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

Most similar pitchers

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

SimilarityPlayerStuff’26 WAR’27 proj2027
38Matthew Liberatore STL · ’99961.11.4Arb
35Jack Dreyer LAD · ’991161.01.0Pre-arb
35Andrew Alvarez WSH · ’99972.52.2Pre-arb
30José Suarez ATH · ’98950.60.4Free agent
29Gage Jump ATH · ’031061.71.8Pre-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

Slider 44%
43% zone
Four-seam 34%
49% zone
Curveball 21%
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 0.6 WAR Arbitration $1.1M*
2028 0.6 WAR Arbitration $2.5M*
2029 0.6 WAR Arbitration $4.3M*
2030 0.5 WAR Arbitration $4.9M*

* projected arbitration or minimum salary. Contract Studio →

Minor leagues

MLB Stats API · public box-score data

SeasonLevelLevelTeamAgeGPA / IPPA / IP ·Line
2026AAAAAARochester Red Wings26313.1 IP 13.1 IP · 6.08 ERA · 26.7% K · 5.0% 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.