Separation Score Leaderboard
What is Pitch Separation Score?
Separation Score measures how much a pitcher's pitches diverge at the plate using usage-weighted Euclidean distance. Pitch pairs are weighted by combined usage (geometric mean), so high separation between frequently-thrown pitches matters most. Think sinker/sweeper combos like Blake Treinen.
22+ inches of weighted separation - devastating arsenal
17-22" - strong pitch shape contrast
<17" - pitches move similarly, easier to read
Horiz. and Vert. columns show weighted average separation in inches. Click any column header to sort.
For each pitch type in a game:
1. Calculate usage from ALL pitches: usage = count / total_pitches
2. Calculate movement centroids from pitches with valid pfx data: avg_x = avg(pfx_x) × 12, avg_z = avg(pfx_z) × 12
For each pitch type pair:
3. Calculate separations: h_sep = |avg_x₁ - avg_x₂|, v_sep = |avg_z₁ - avg_z₂|
4. Euclidean distance: √(h_sep² + v_sep²)
5. Weight by usage: weight = √(usage₁ × usage₂)
6. Calculate weighted averages (horizontal, vertical, and Euclidean separately)
7. Scale to 0-100: score = (avg_euclidean / 25) × 100
Usage definition: Usage percentages are calculated from ALL pitches (including those with missing pfx data) to ensure consistent weighting. Movement centroids are calculated only from pitches with valid pfx_x and pfx_z values.
Best Pair = the pair with highest euclidean × weight product. Horizontal and vertical components are separate weighted averages (not components of the Euclidean vector). pfx values are converted from feet to inches (×12). Season scores are averages of game-level calculations.
Top 100 Separation Scores (min. 10 games)• 2025
| Rank | Pitcher▲▼ | Separation▲▼ | Best Pair▲▼ | Horiz.▲▼ | Vert.▲▼ | Tunnel▲▼ | Games▲▼ |
|---|---|---|---|---|---|---|---|
| 1 |  Drew Pomeranz | 100.0 | FF/KC | 6" | 30" | 88.4 | 63 |
| 2 |  Taylor Rogers | 100.0 | SI/ST | 31" | 6" | 82.0 | 58 |
| 3 |  Danny Young | 100.0 | SI/ST | 38" | 4" | 67.4 | 10 |
| 4 |  Justin Lawrence | 100.0 | SI/ST | 30" | 5" | 81.7 | 17 |
| 5 |  Ryan Walker | 100.0 | SI/SL | 30" | 2" | 84.9 | 68 |
| 6 |  Justin Bruihl | 100.0 | SI/ST | 20" | 7" | 73.8 | 16 |
| 7 |  Tyler Rogers | 99.9 | SI/SL | 13" | 26" | 89.5 | 81 |
| 8 |  Matt Brash | 99.9 | SI/SL | 22" | 10" | 82.8 | 61 |
| 9 |  Eduard Bazardo | 99.6 | SI/SL | 26" | 14" | 73.9 | 82 |
| 10 |  Bryan Abreu | 99.3 | FF/SL | 14" | 21" | 75.3 | 70 |
| 11 |  Steven Wilson | 99.1 | FF/ST | 20" | 14" | 72.6 | 59 |
| 12 |  Connor Phillips | 99.1 | FF/ST | 22" | 17" | 75.5 | 22 |
| 13 |  Craig Kimbrel | 99.0 | FF/KC | 21" | 22" | 83.3 | 14 |
| 14 |  Hogan Harris | 98.8 | CU/FF | 16" | 23" | 74.9 | 48 |
| 15 |  Trevor Megill | 98.5 | FF/KC | 10" | 25" | 84.5 | 55 |
| 16 |  Wikelman González | 97.2 | FF/SV | 23" | 15" | 84.8 | 16 |
| 17 |  Mason Miller | 97.2 | FF/SL | 16" | 18" | 80.2 | 62 |
| 18 |  Reid Detmers | 96.9 | CU/FF | 13" | 20" | 76.4 | 61 |
| 19 |  Pierce Johnson | 96.8 | CU/FF | 20" | 20" | 84.3 | 65 |
| 20 |  Ryan Thompson | 96.7 | SI/SL | 26" | 14" | 78.3 | 48 |
| 21 |  Orion Kerkering | 96.7 | FF/ST | 25" | 13" | 69.6 | 73 |
| 22 |  Luis Peralta | 96.6 | CU/FF | 21" | 16" | 78.7 | 22 |
| 23 |  Colin Selby | 96.4 | KC/SI | 18" | 16" | 86.3 | 11 |
| 24 |  Clayton Beeter | 96.3 | FF/SL | 8" | 23" | 85.1 | 26 |
| 25 |  Grant Anderson | 96.2 | FF/ST | 20" | 8" | 74.2 | 68 |
| 26 |  Lucas Sims | 96.0 | FF/ST | 18" | 15" | 85.2 | 18 |
| 27 |  Will Warren | 95.9 | FF/ST | 19" | 11" | 78.2 | 34 |
| 28 |  Dustin May | 95.8 | SI/ST | 20" | 9" | 80.5 | 25 |
| 29 |  Yohan Ramírez | 95.7 | FF/ST | 26" | 7" | 61.1 | 24 |
| 30 |  Landen Roupp | 95.7 | CU/SI | 26" | 10" | 75.4 | 22 |
| 31 |  Blake Treinen | 95.3 | SI/ST | 22" | 7" | 85.2 | 42 |
| 32 |  Cole Henry | 95.3 | FF/ST | 25" | 11" | 73.6 | 57 |
| 33 |  Nick Sandlin | 95.3 | FS/SL | 21" | 6" | 77.3 | 19 |
| 34 |  Abner Uribe | 95.3 | SI/SL | 24" | 3" | 86.1 | 80 |
| 35 |  Cade Gibson | 95.3 | CU/SI | 20" | 16" | 81.1 | 44 |
| 36 |  Luis Morales | 95.3 | FF/ST | 21" | 12" | 83.3 | 10 |
| 37 |  Sam Moll | 95.0 | SI/ST | 25" | 7" | 81.6 | 23 |
| 38 |  Framber Valdez | 95.0 | CU/SI | 18" | 14" | 83.3 | 31 |
| 39 |  Brandyn Garcia | 94.8 | SI/ST | 28" | 4" | 85.2 | 14 |
| 40 |  Tony Santillan | 94.3 | FF/SV | 20" | 15" | 85.4 | 81 |
| 41 |  Tristan Beck | 94.1 | FF/ST | 16" | 15" | 77.4 | 31 |
| 42 |  Joel Payamps | 94.0 | FF/SL | 19" | 12" | 78.6 | 30 |
| 43 |  Griffin Jax | 94.0 | CH/ST | 19" | 14" | 88.4 | 73 |
| 44 |  Nick Pivetta | 93.9 | CU/FF | 10" | 24" | 78.5 | 32 |
| 45 |  Sean Manaea | 93.8 | FF/ST | 15" | 6" | 76.3 | 15 |
| 46 |  Mark Leiter Jr. | 93.7 | CU/SI | 13" | 14" | 79.2 | 59 |
| 47 |  Forrest Whitley | 93.4 | CU/FF | 17" | 17" | 86.4 | 10 |
| 48 |  Michael Soroka | 93.3 | FF/SV | 15" | 14" | 84.5 | 24 |
| 49 |  Charlie Morton | 93.1 | CU/FF | 19" | 12" | 87.1 | 33 |
| 50 |  Bryan King | 93.1 | FF/ST | 19" | 11" | 83.0 | 68 |
| 51 |  Phil Maton | 93.0 | CU/FC | 15" | 17" | 78.6 | 63 |
| 52 |  Chris Murphy | 93.0 | CU/FF | 14" | 18" | 71.4 | 23 |
| 53 |  Anthony Bender | 92.8 | SI/ST | 27" | 4" | 64.5 | 51 |
| 54 |  Caleb Thielbar | 92.7 | CU/FF | 13" | 24" | 81.6 | 72 |
| 55 |  Aaron Bummer | 92.6 | CU/SI | 26" | 5" | 81.9 | 42 |
| 56 |  Jake Bird | 92.6 | SI/ST | 18" | 8" | 68.8 | 48 |
| 57 |  David Bednar | 92.6 | CU/FF | 12" | 21" | 73.5 | 69 |
| 58 |  Randy Rodríguez | 92.4 | FF/SL | 16" | 16" | 85.4 | 50 |
| 59 |  AJ Blubaugh | 92.2 | FF/ST | 19" | 13" | 80.1 | 11 |
| 60 |  Paul Sewald | 92.0 | FF/ST | 23" | 6" | 80.1 | 22 |
| 61 |  Max Lazar | 92.0 | FF/KC | 6" | 25" | 86.4 | 36 |
| 62 |  David Robertson | 91.8 | FC/KC | 6" | 23" | 85.9 | 21 |
| 63 |  Chris Sale | 91.8 | FF/SL | 19" | 10" | 78.2 | 21 |
| 64 |  Sean Newcomb | 91.7 | FF/SV | 15" | 17" | 74.7 | 48 |
| 65 |  Landon Knack | 91.6 | FF/KC | 11" | 18" | 84.5 | 10 |
| 66 |  Lance McCullers Jr. | 91.5 | SI/SL | 19" | 10" | 84.9 | 16 |
| 67 |  Jesus Tinoco | 91.4 | SI/SL | 19" | 5" | 80.3 | 20 |
| 68 |  Aaron Ashby | 91.4 | CU/SI | 17" | 15" | 83.9 | 50 |
| 69 |  Aaron Nola | 91.3 | FF/KC | 17" | 14" | 85.7 | 18 |
| 70 |  JoJo Romero | 91.0 | SI/SL | 19" | 5" | 84.3 | 65 |
| 71 |  Sean Burke | 91.0 | CU/FF | 11" | 19" | 82.1 | 28 |
| 72 |  Tommy Nance | 90.9 | CU/SI | 18" | 15" | 72.7 | 32 |
| 73 |  Aaron Civale | 90.6 | CU/FC | 14" | 16" | 78.9 | 24 |
| 74 |  Hoby Milner | 90.5 | SI/ST | 23" | 4" | 84.6 | 73 |
| 75 |  Shane Baz | 90.5 | FF/KC | 13" | 17" | 86.4 | 31 |
| 76 |  Kyle Harrison | 90.5 | FF/SV | 17" | 12" | 76.5 | 11 |
| 77 |  Luinder Avila | 90.4 | CU/SI | 16" | 16" | 80.8 | 13 |
| 78 |  Cade Povich | 90.3 | CU/FF | 14" | 16" | 87.7 | 22 |
| 79 |  Steven Matz | 90.1 | CU/SI | 16" | 14" | 84.9 | 55 |
| 80 |  Shawn Dubin | 90.1 | CU/FF | 17" | 17" | 78.4 | 30 |
| 81 |  Joe Mantiply | 89.9 | CU/SI | 17" | 5" | 89.5 | 10 |
| 82 |  Bryan Hudson | 89.8 | FF/ST | 16" | 12" | 77.7 | 16 |
| 83 |  Luke Jackson | 89.7 | FF/SL | 7" | 21" | 74.7 | 54 |
| 84 |  Garrett Cleavinger | 89.4 | SI/SL | 18" | 13" | 81.0 | 67 |
| 85 |  Pete Fairbanks | 89.4 | FF/SL | 4" | 24" | 74.4 | 61 |
| 86 |  Kyle Nicolas | 89.4 | CU/FF | 12" | 20" | 84.1 | 31 |
| 87 |  Shinnosuke Ogasawara | 89.4 | FF/KC | 12" | 19" | 78.0 | 23 |
| 88 |  Cole Ragans | 89.3 | FF/KC | 13" | 14" | 82.7 | 13 |
| 89 |  Chris Bassitt | 89.1 | CU/SI | 18" | 10" | 75.8 | 39 |
| 90 |  Sean Reynolds | 88.8 | FF/SL | 16" | 15" | 74.8 | 19 |
| 91 |  Louis Varland | 88.8 | FF/KC | 11" | 16" | 82.5 | 89 |
| 92 |  George Kirby | 88.7 | SI/SL | 15" | 14" | 87.0 | 27 |
| 93 |  Josh Hader | 88.6 | SI/SL | 12" | 17" | 69.4 | 48 |
| 94 |  Chris Devenski | 88.5 | CH/ST | 13" | 10" | 77.3 | 13 |
| 95 |  Kyle Backhus | 88.5 | SI/ST | 27" | 2" | 71.1 | 32 |
| 96 |  Zach Brzykcy | 88.5 | CU/FF | 12" | 19" | 76.4 | 26 |
| 97 |  Scott Effross | 88.4 | SI/ST | 23" | 7" | 79.8 | 11 |
| 98 |  Josh Simpson | 88.3 | CU/SI | 19" | 12" | 78.4 | 31 |
| 99 |  Will Klein | 88.3 | CU/FF | 10" | 21" | 72.2 | 16 |
| 100 |  David Morgan | 88.2 | CU/FF | 16" | 15" | 77.3 | 42 |