The Comp Constellation
Profile-shape similarity over six weighted feature groups, standardized within this season's 255 qualified hitters (336+ 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. Chapman, Matt in signal, the comp in amber.
SF · bats R · 364 PA
Ranked comps for Chapman, Matt
| # | Player | Similarity | Agrees on | Differs on | Open |
|---|---|---|---|---|---|
| 01 | Herrera, Iván STL · R · 721 PA | 0.73 | Walk rateIsolated powerWhiff rate | Sprint speed -1.5zBat speed -1.0zSweet-spot rate +0.9z | Player Projection Swing lab |
| 02 | Sheets, Gavin SD · L · 436 PA | 0.70 | Pull rateBarrel rateAvg exit velocity | Sprint speed -1.1zIn-zone contact +1.0zIsolated power +0.9z | Player Projection Swing lab |
| 03 | Springer, George TOR · R · 534 PA | 0.68 | Ground-ball ratePull rateWhiff rate | Oppo rate -1.5zBat speed -1.2zSweet-spot rate +1.1z | Player Projection Swing lab |
| 04 | Ortiz, Joey MIL · R · 435 PA | 0.66 | Hard-hit rateSwing lengthMax exit velocity | Pull rate -1.5zIn-zone contact +1.1zChase rate +1.0z | Player Projection Swing lab |
| 05 | Bogaerts, Xander SD · R · 623 PA | 0.65 | Sweet-spot rateIn-zone contactWhiff rate | Bat speed -1.4zOppo rate -1.3zGround-ball rate +1.2z | Player Projection Swing lab |
| 06 | Collins, Isaac KC · L · 528 PA | 0.63 | xwOBA on contactOppo ratePull rate | Swing length -1.6zBat speed -1.4zIn-zone contact +0.9z | Player Projection Swing lab |
| 07 | Realmuto, J.T. PHI · R · 478 PA | 0.62 | In-zone contactSprint speedPull rate | Sweet-spot rate +2.1zBat speed -0.9zOppo rate -0.9z | Player Projection Swing lab |
| 08 | Taveras, Leody BAL · L · 496 PA | 0.61 | Max exit velocityGround-ball ratexwOBA on contact | Bat speed -2.0zAvg exit velocity -1.4zChase rate +1.0z | Player Projection Swing lab |
| 09 | Butler, Lawrence ATH · L · 550 PA | 0.61 | Fly-ball ratePull rateMax exit velocity | xwOBA on contact +1.6zGround-ball rate +1.2zSweet-spot rate +1.2z | Player Projection Swing lab |
| 10 | Yelich, Christian MIL · L · 518 PA | 0.60 | Pull rateIsolated powerAvg exit velocity | Ground-ball rate +1.7zxwOBA on contact +1.3zWhiff rate +1.2z | Player Projection Swing lab |
| 11 | Bazzana, Travis CLE · L · 525 PA | 0.59 | Pull rateHard-hit rateChase rate | Bat speed -2.4zFly-ball rate +1.3zOppo rate -1.1z | Player Projection Swing lab |
| 12 | Henderson, Gunnar BAL · L · 719 PA | 0.59 | Swing lengthStrikeout rateWhiff rate | Sweet-spot rate +1.7zOppo rate -1.7zxwOBA 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.