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. Semien, Marcus in signal, the comp in amber.
NYM · bats R · 568 PA
Ranked comps for Semien, Marcus
| # | Player | Similarity | Agrees on | Differs on | Open |
|---|---|---|---|---|---|
| 01 | Bellinger, Cody NYY · L · 599 PA | 0.76 | Pull rateGround-ball rateBarrel rate | Sweet-spot rate +0.9zAvg exit velocity +0.9zSprint speed -0.8z | Player Projection Swing lab |
| 02 | Yastrzemski, Mike ATL · L · 433 PA | 0.72 | Whiff rateBarrel rateChase rate | Strikeout rate +0.9zHard-hit rate +0.9zAvg exit velocity +0.9z | Player Projection Swing lab |
| 03 | Tucker, Kyle LAD · L · 677 PA | 0.66 | Barrel rateSweet-spot rateGround-ball rate | Walk rate +1.5zSprint speed -1.3zSwing length -1.2z | Player Projection Swing lab |
| 04 | Albies, Ozzie ATL · L · 732 PA | 0.65 | In-zone contactGround-ball rateFly-ball rate | Chase rate +1.8zSwing length -1.4zSprint speed -0.9z | Player Projection Swing lab |
| 05 | Rocchio, Brayan CLE · L · 635 PA | 0.65 | Sweet-spot rateIsolated powerWhiff rate | Fly-ball rate -1.2zSwing length -1.2zBarrel rate -1.0z | Player Projection Swing lab |
| 06 | Varsho, Daulton TOR · L · 546 PA | 0.64 | In-zone contactIsolated powerSwing length | Bat speed +1.6zChase rate +1.5zMax exit velocity +1.1z | Player Projection Swing lab |
| 07 | Loftin, Nick KC · R · 446 PA | 0.63 | Bat speedChase rateSprint speed | Swing length -1.7zMax exit velocity +1.2zIn-zone contact +1.0z | Player Projection Swing lab |
| 08 | Beavers, Dylan BAL · L · 368 PA | 0.59 | Fly-ball rateIsolated powerBarrel rate | Oppo rate +1.6zStrikeout rate +1.4zBat speed +1.2z | Player Projection Swing lab |
| 09 | O'Hearn, Ryan PIT · L · 472 PA | 0.59 | Sweet-spot rateIn-zone contactWhiff rate | Swing length -1.4zSprint speed -1.2zOppo rate +1.0z | Player Projection Swing lab |
| 10 | Young, Jacob WSH · R · 488 PA | 0.59 | Sweet-spot rateIsolated powerChase rate | Swing length -1.8zPull rate -1.6zOppo rate +1.4z | Player Projection Swing lab |
| 11 | Stott, Bryson PHI · L · 640 PA | 0.59 | Sprint speedBarrel rateIsolated power | Max exit velocity +1.6zSwing length -1.3zFly-ball rate -1.2z | Player Projection Swing lab |
| 12 | Wetherholt, JJ STL · L · 633 PA | 0.59 | In-zone contactSweet-spot rateIsolated power | Ground-ball rate +1.4zHard-hit rate +1.3zPull rate -1.2z | 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.