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. Semien, Marcus in signal, the comp in amber.

NYM · bats R · 476 PA

Ranked comps for Semien, Marcus

#PlayerSimilarityAgrees onDiffers onOpen
01 Bellinger, Cody NYY · L · 483 PA 0.74 Fly-ball rateGround-ball rateOppo rate Walk rate +1.2zStrikeout rate -0.9zAvg exit velocity +0.8z Player Projection Swing lab
02 Yastrzemski, Mike ATL · L · 353 PA 0.71 In-zone contactFly-ball rateOppo rate Avg exit velocity +1.3zHard-hit rate +1.2zBat speed +1.0z Player Projection Swing lab
03 Tucker, Kyle LAD · L · 547 PA 0.66 In-zone contactIsolated powerGround-ball rate Walk rate +1.5zSprint speed -1.3zSwing length -1.2z Player Projection Swing lab
04 Rocchio, Brayan CLE · L · 523 PA 0.64 Avg exit velocityIn-zone contactWhiff rate Swing length -1.3zStrikeout rate -1.1zBarrel rate -1.0z Player Projection Swing lab
05 Adames, Willy SF · R · 517 PA 0.63 Sweet-spot rateWalk ratePull rate Bat speed +1.4zIsolated power +1.2zStrikeout rate +1.1z Player Projection Swing lab
06 Gilbert, Drew SF · L · 356 PA 0.63 xwOBA on contactSweet-spot rateHard-hit rate Fly-ball rate -1.7zMax exit velocity +1.1zOppo rate +1.1z Player Projection Swing lab
07 Varsho, Daulton TOR · L · 482 PA 0.62 Isolated powerAvg exit velocityWalk rate Bat speed +1.6zChase rate +1.4zPull rate -1.4z Player Projection Swing lab
08 Larnach, Trevor MIN · L · 416 PA 0.61 xwOBA on contactIn-zone contactOppo rate Swing length -1.6zBat speed +1.2zSprint speed -1.1z Player Projection Swing lab
09 Schneemann, Daniel CLE · L · 290 PA 0.60 Barrel rateOppo rateFly-ball rate Swing length -1.7zStrikeout rate +1.4zWhiff rate +1.2z Player Projection Swing lab
10 O'Hearn, Ryan PIT · L · 419 PA 0.60 Walk rateStrikeout rateFly-ball rate Swing length -1.4zPull rate -1.3zHard-hit rate +1.1z Player Projection Swing lab
11 Steer, Spencer CIN · R · 405 PA 0.60 In-zone contactWhiff ratePull rate Barrel rate +1.3zGround-ball rate +1.1zAvg exit velocity +1.1z Player Projection Swing lab
12 Albies, Ozzie ATL · L · 602 PA 0.58 Pull rateAvg exit velocityBat speed Chase rate +1.8zSwing length -1.5zxwOBA on contact -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.