The Gravity Report
THE 644
1 JOKIĆ 97.8 · 2 GILGEOUS-ALEXANDER 92.9 · 3 WEMBANYAMA 85.7 · 4 ANTETOKOUNMPO 83.9 · 5 DONČIĆ 83.0 · 6 LEONARD 77.3 · 7 CUNNINGHAM 70.3 · 8 TOWNS 69.3 · 9 MITCHELL 68.1 · 10 MAXEY 67.3 · 11 BALL 66.8 · 12 HOLMGREN 66.6 · 13 CURRY 66.5 · 14 DUREN 65.9 · 15 BARNES 65.8
Technical document · Version 3 · Citable

The GRAVITY Specification

Game-Rate Adjusted Value, Impact, Talent, and Yield — the player-value model, in full.
Francesco Freedman · The Gravity Report · published July 10, 2026 · model version v3 (CTG-integrated) · 5 pages, typeset in LaTeX
Not a research paper. This is an article, typeset in LaTeX: independent analysis, not peer reviewed.
Findings may be revised. Errors are the author's own. Relabeled October 6, 2026; no content changed.

GRAVITY is an original player-value model: it estimates a player's per-minute quality and adjusts for role, availability, and documented injury risk — measuring not just how good a player is, but how much of that ability a team actually receives. It is the system behind The 644, the full-league ranking, and every article this publication ships. (It is unrelated to the NBA's defensive-attention "gravity" statistic — different quantity, different purpose. Ours is a value model.)

THE SCALE
  50   league-average minute
  60+  quality starter
  80+  franchise engine
  97.8 Nikola Jokić (2025-26 max)

What the document contains

  • Minutes-weighted standardization and all seven component constructions (efficiency under load, creation, offensive load, stocks, rebounding, rim pressure, volume), with the reasoning for design choices like the 0.7 usage exponent.
  • Every weight in the skill blend and season impact; the two-year blend, credibility shrinkage toward replacement (ρ = −1.9), and playoff and age adjustments.
  • The complete injury-override table — every hand-set multiplier in the model, with reasons. Nothing else is manually adjusted.
  • Tier definitions, the GRAVITY-RS (Retrospective) historical variant, and the rookie module with its slot priors — including the creation-term deficiency the Morant article exposed, scheduled for v4 before the All-Star 2027 edition.
  • Version history (v1.0 → v2 Butler correction → v3 CTG integration), the edition calendar, data sources and reproducibility statement, and known limitations.
Page 1 of the GRAVITY specification: standardization and component constructions.
Page 1. Standardization and the component constructions.
Page 2 of the GRAVITY specification: the impact blend, two-year machinery, and reliability multipliers.
Page 2. The impact blend and the reliability machinery — availability, role size, injury overrides.
House rule: the weights are specified by judgment before any player is ranked — they are not fitted to a target. Transparency makes the judgment inspectable; the sensitivity analyses published with the articles test how much conclusions depend on it, and the Forecast Ledger validates the model the only way that counts: registered predictions, graded in public, annually.
Read the specification (PDF, 5 pp) Read it in the inbox LaTeX source

Cite the model

Freedman, F. (2026). "The GRAVITY Specification: Game-Rate Adjusted
Value, Impact, Talent, and Yield (v3)." The Gravity Report, technical document.
https://thegravityreport.com/notes/spec/

@techreport{gravity2026spec,
  author      = {Freedman, Francesco},
  title       = {The GRAVITY Specification: Game-Rate Adjusted Value, Impact,
                 Talent, and Yield (v3)},
  institution = {The Gravity Report},
  type        = {Technical document},
  year        = {2026},
  month       = {7},
  url         = {https://thegravityreport.com/notes/spec/}
}