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. Ballesteros, Moisés in signal, the comp in amber.

CHC · bats L · 287 PA

Ranked comps for Ballesteros, Moisés

#PlayerSimilarityAgrees onDiffers onOpen
01 Bailey, Patrick CLE · L · 299 PA 0.79 Sweet-spot rateFly-ball rateBat speed Barrel rate -1.1zMax exit velocity -0.8zChase rate -0.7z
02 Sánchez, Jesús TOR · L · 305 PA 0.78 Oppo ratePull rateHard-hit rate xwOBA on contact +1.1zIn-zone contact -1.0zSprint speed +1.0z
03 Contreras, William MIL · R · 559 PA 0.75 Fly-ball rateAvg exit velocityWalk rate Strikeout rate -1.3zChase rate -1.2zWhiff rate -0.9z
04 Walker, Christian HOU · R · 556 PA 0.73 Oppo rateIn-zone contactGround-ball rate Isolated power +1.4zSwing length +0.9zSprint speed +0.7z
05 Cortes, Carlos ATH · L · 334 PA 0.69 Ground-ball rateIsolated powerSwing length Chase rate -1.2zHard-hit rate -1.2zSweet-spot rate +1.0z
06 Machado, Manny SD · R · 584 PA 0.68 Whiff rateOppo rateStrikeout rate Swing length +1.9zIsolated power +0.9zChase rate -0.8z
07 Grissom, Vaughn LAA · R · 367 PA 0.66 xwOBA on contactIsolated powerFly-ball rate Sprint speed +1.4zHard-hit rate -1.2zAvg exit velocity -1.1z
08 Baldwin, Drake ATL · L · 526 PA 0.64 Oppo rateIn-zone contactStrikeout rate xwOBA on contact +1.8zBat speed +1.1zSweet-spot rate +1.0z
09 Herrera, Iván STL · R · 620 PA 0.63 xwOBA on contactIsolated powerGround-ball rate Swing length +1.4zBarrel rate -1.3zFly-ball rate -1.2z
10 McMahon, Ryan NYY · L · 326 PA 0.63 Oppo rateIsolated powerBarrel rate Strikeout rate +1.4zFly-ball rate +1.2zxwOBA on contact +1.2z
11 Baty, Brett NYM · L · 430 PA 0.62 Walk rateAvg exit velocityOppo rate Sprint speed +1.3zSweet-spot rate +1.1zMax exit velocity +1.0z
12 O'Hearn, Ryan PIT · L · 419 PA 0.62 Strikeout rateSwing lengthAvg exit velocity Sprint speed +1.4zMax exit velocity -1.2zSweet-spot 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.