The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 256 qualified hitters (340+ 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. Acuña Jr., Ronald in signal, the comp in amber.

ATL · bats R · 509 PA

Ranked comps for Acuña Jr., Ronald

#PlayerSimilarityAgrees onDiffers onOpen
01 Baty, Brett NYM · L · 490 PA 0.75 Bat speedChase rateHard-hit rate Isolated power -1.1zOppo rate -0.9zWalk rate -0.9z Player Projection Swing lab
02 Stewart, Sal CIN · R · 725 PA 0.73 Strikeout rateBarrel rateSwing length Max exit velocity -1.4zBat speed -1.0zWalk rate -0.9z Player Projection Swing lab
03 Hernández, Teoscar LAD · R · 539 PA 0.71 Ground-ball rateHard-hit ratexwOBA on contact Walk rate -1.2zStrikeout rate +1.0zMax exit velocity -0.9z Player Projection Swing lab
04 Smith, Cam HOU · R · 590 PA 0.71 Fly-ball rateHard-hit rateIsolated power Walk rate -1.6zSprint speed +1.5zBat speed +0.8z Player Projection Swing lab
05 Baldwin, Drake ATL · L · 666 PA 0.69 Strikeout rateFly-ball rateBat speed Chase rate +1.0zIn-zone contact +1.0zSweet-spot rate +1.0z Player Projection Swing lab
06 Machado, Manny SD · R · 713 PA 0.69 Hard-hit rateIsolated powerAvg exit velocity Sprint speed -1.4zMax exit velocity -1.2zIn-zone contact +1.1z Player Projection Swing lab
07 Arozarena, Randy SEA · R · 695 PA 0.67 Strikeout rateSprint speedHard-hit rate Bat speed -1.5zBarrel rate -1.2zSwing length -0.9z Player Projection Swing lab
08 House, Brady WSH · R · 371 PA 0.65 Swing lengthOppo ratexwOBA on contact Walk rate -1.3zSweet-spot rate -1.1zChase rate +1.0z Player Projection Swing lab
09 Reynolds, Bryan PIT · L · 719 PA 0.64 Whiff rateFly-ball ratexwOBA on contact Swing length -1.4zIn-zone contact +1.3zSweet-spot rate +1.0z Player Projection Swing lab
10 Eldridge, Bryce SF · L · 456 PA 0.63 Isolated powerWhiff rateBat speed Oppo rate -1.4zAvg exit velocity +1.0zHard-hit rate +1.0z Player Projection Swing lab
11 Harper, Bryce PHI · L · 715 PA 0.63 Sprint speedStrikeout rateAvg exit velocity Oppo rate -1.6zPull rate +1.3zSweet-spot rate +1.2z Player Projection Swing lab
12 Walker, Christian HOU · R · 657 PA 0.63 Ground-ball rateWhiff rateStrikeout rate Walk rate -1.3zxwOBA on contact -1.2zIn-zone contact +1.0z 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.