The Comp Constellation

Profile-shape similarity over six weighted feature groups, standardized within this season's 260 qualified hitters (204+ 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. Tatis Jr., Fernando in signal, the comp in amber.

SD · bats R · 426 PA

Ranked comps for Tatis Jr., Fernando

#PlayerSimilarityAgrees onDiffers onOpen
01 Smith, Cam HOU · R · 374 PA 0.70 Whiff ratexwOBA on contactWalk rate Fly-ball rate +1.1zIsolated power +1.1zSwing length +1.0z Player Projection Swing lab
02 Guerrero Jr., Vladimir TOR · R · 398 PA 0.54 In-zone contactMax exit velocityIsolated power Sprint speed -2.2zStrikeout rate -1.4zWhiff rate -1.2z Player Projection Swing lab
03 Rodríguez, Julio SEA · R · 392 PA 0.53 Sprint speedStrikeout rateWhiff rate Chase rate +2.0zGround-ball rate -1.5zIsolated power +1.3z Player Projection Swing lab
04 Reynolds, Bryan PIT · L · 440 PA 0.52 Avg exit velocityIn-zone contactWhiff rate Walk rate +2.0zIsolated power +1.6zSweet-spot rate +1.1z Player Projection Swing lab
05 Alexander, Blaze BAL · R · 258 PA 0.51 Strikeout rateSwing lengthAvg exit velocity Sweet-spot rate +2.9zBarrel rate -1.0zIn-zone contact -1.0z Player Projection Swing lab
06 Chapman, Matt SF · R · 364 PA 0.48 In-zone contactStrikeout rateChase rate Hard-hit rate -2.0zxwOBA on contact -1.5zPull rate +1.1z Player Projection Swing lab
07 Lopez, Otto MIA · R · 423 PA 0.47 Pull rateOppo rateGround-ball rate Isolated power +1.4zWalk rate -1.3zHard-hit rate -1.2z Player Projection Swing lab
08 Baty, Brett NYM · L · 345 PA 0.45 Bat speedWhiff rateIsolated power Oppo rate -1.6zSprint speed -1.6zHard-hit rate -1.5z Player Projection Swing lab
09 Duran, Jarren BOS · L · 399 PA 0.45 Barrel rateBat speedSprint speed Oppo rate -1.9zHard-hit rate -1.6zPull rate +1.5z Player Projection Swing lab
10 Chourio, Jackson MIL · R · 296 PA 0.44 Pull rateBat speedSprint speed Isolated power +2.2zFly-ball rate +1.8zChase rate +1.1z Player Projection Swing lab
11 Butler, Lawrence ATH · L · 288 PA 0.43 Isolated powerWhiff rateBat speed Sprint speed -2.0zPull rate +1.9zBarrel rate -1.3z Player Projection Swing lab
12 Arozarena, Randy SEA · R · 403 PA 0.43 xwOBA on contactAvg exit velocityStrikeout rate Sweet-spot rate +1.9zIn-zone contact -1.9zSprint speed -1.6z 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.