The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 258 qualified hitters (286+ PA). Closer to the center star = more alike. xwOBA is deliberately excluded: this maps how hitters are built, not results twins.

strong match (0.55+) moderate (0.45 to 0.55) weaker (< 0.45) star size + line weight scale with similarity · rings mark 0.70 / 0.50 / 0.30 · hover a star for why, click for the fingerprint
Radial fingerprint · population percentiles

Two profile shapes drawn over the same axes: overlap is what makes them comps, gaps are where they part. Castro, Willi in signal, the comp in amber.

COL · bats L · 494 PA

Ranked comps for Castro, Willi

#PlayerSimilarityAgrees onDiffers onOpen
01 Cowser, Colton BAL · L · 348 PA 0.72 Hard-hit rateIsolated powerAvg exit velocity Chase rate -1.4zWalk rate +1.2zPull rate -1.1z Player Projection Swing lab
02 Crews, Dylan WSH · R · 362 PA 0.71 xwOBA on contactHard-hit rateStrikeout rate Pull rate -1.5zAvg exit velocity +1.1zChase rate -0.8z Player Projection Swing lab
03 Duran, Jarren BOS · L · 557 PA 0.70 Sweet-spot ratexwOBA on contactHard-hit rate Fly-ball rate -1.7zGround-ball rate +1.3zAvg exit velocity +0.8z Player Projection Swing lab
04 Burger, Jake TEX · R · 535 PA 0.69 Strikeout rateOppo rateMax exit velocity Avg exit velocity +1.2zBat speed +1.0zGround-ball rate +0.9z Player Projection Swing lab
05 Lewis, Royce MIN · R · 438 PA 0.69 Pull ratexwOBA on contactIsolated power Swing length +1.9zAvg exit velocity +0.9zGround-ball rate -0.9z Player Projection Swing lab
06 Abrams, CJ WSH · L · 586 PA 0.68 Walk rateBat speedHard-hit rate Isolated power +1.5zMax exit velocity -1.1zAvg exit velocity +0.9z Player Projection Swing lab
07 Merrill, Jackson SD · L · 582 PA 0.66 Chase rateIn-zone contactFly-ball rate Sweet-spot rate +1.4zMax exit velocity -1.1zAvg exit velocity +1.1z Player Projection Swing lab
08 Lowe, Josh LAA · L · 301 PA 0.66 Bat speedWhiff rateSprint speed Max exit velocity -1.6zIn-zone contact -1.4zPull rate -1.3z Player Projection Swing lab
09 Riley, Austin ATL · R · 557 PA 0.65 Fly-ball rateIsolated powerWalk rate Avg exit velocity +1.6zPull rate -1.1zBat speed +1.0z Player Projection Swing lab
10 Rodríguez, Julio SEA · R · 561 PA 0.63 Isolated powerChase rateMax exit velocity Pull rate -1.6zBat speed +1.4zAvg exit velocity +1.1z Player Projection Swing lab
11 Baty, Brett NYM · L · 430 PA 0.63 xwOBA on contactMax exit velocityWhiff rate Chase rate -1.3zSweet-spot rate +1.2zAvg exit velocity +1.1z Player Projection Swing lab
12 Henderson, Gunnar BAL · L · 627 PA 0.62 Pull rateSprint speedSweet-spot rate Fly-ball rate -1.2zChase rate -1.2zGround-ball rate +1.1z Player Projection Swing lab

Weighted RMS z-distance over 6 feature groups, standardized within the qualified population; similarity = exp(-alpha * d^2), one global fixed transform. xwOBA excluded by design: this matches profile shape, not outcome twins. Descriptive, not predictive.