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. Rocchio, Brayan in signal, the comp in amber.

CLE · bats L · 523 PA

Ranked comps for Rocchio, Brayan

#PlayerSimilarityAgrees onDiffers onOpen
01 Grissom, Vaughn LAA · R · 367 PA 0.78 Walk rateSwing lengthWhiff rate Pull rate -1.2zBarrel rate +1.0zHard-hit rate +0.7z
02 Smith, Dominic ATL · L · 302 PA 0.77 Isolated powerGround-ball rateStrikeout rate Pull rate -1.1zSprint speed -1.1zSwing length -0.9z
03 Albies, Ozzie ATL · L · 602 PA 0.76 Strikeout rateIn-zone contactSwing length Fly-ball rate +1.5zGround-ball rate -1.0zChase rate +0.9z
04 Young, Cole SEA · L · 569 PA 0.75 In-zone contactPull rateWalk rate Sweet-spot rate -0.9zSwing length -0.9zHard-hit rate +0.8z
05 Gilbert, Drew SF · L · 356 PA 0.73 Whiff rateAvg exit velocityPull rate Walk rate +1.2zChase rate -1.2zxwOBA on contact +0.9z
06 Loftin, Nick KC · R · 374 PA 0.73 Ground-ball rateBarrel rateAvg exit velocity Walk rate +1.2zChase rate -1.2zBat speed -0.8z
07 Varsho, Daulton TOR · L · 482 PA 0.72 Sprint speedAvg exit velocityIn-zone contact Swing length +1.0zBarrel rate +1.0zPull rate -1.0z
08 Young, Jacob WSH · R · 431 PA 0.70 Sweet-spot rateHard-hit rateAvg exit velocity Pull rate -1.4zSprint speed +1.4zChase rate -1.0z
09 Lee, Brooks MIN · L · 549 PA 0.69 Ground-ball rateWalk rateBat speed Isolated power +1.5zSweet-spot rate -1.4zIn-zone contact +0.8z
10 Palacios, Richie TB · L · 344 PA 0.68 Oppo rateBarrel ratexwOBA on contact Walk rate +1.8zMax exit velocity -1.0zFly-ball rate -0.8z
11 Stott, Bryson PHI · L · 533 PA 0.67 Bat speedSwing lengthFly-ball rate Walk rate +1.1zAvg exit velocity +1.0zxwOBA on contact +0.9z
12 Heim, Jonah ATH · L · 331 PA 0.67 Whiff rateChase rateBat speed Sprint speed -1.8zIsolated power +1.1zBarrel rate +1.0z

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.