- X-NAV
- Extended Net Asset Value: the Ledger's skater trade-value model. Offense, defense, gravity, age curve, contract surplus, deployment, Point Shares, and role context priced into one number.
- G-NAV
- X-NAV for goalies. Built around GSAx, workload, save profile, team defensive context, age, and contract surplus.
- Prospect NAV
- Pre-NHL value comes from draft pedigree and stored NHLe production. No-signal ELC players do not receive automatic cap or age value.
- OFF / DEF
- On-ice components: offensive production and creation on one side, suppression and defensive value on the other, each judged against position.
- GRAV
- The X-NAV handoff from Gravity v3. It contains only the bounded neutral-zone transition proxy; direct offense and defensive suppression are valued elsewhere.
- Modelled Field
- The warped rink is a visualization generated from three model components. It is not an observed tracking heatmap or a map of puck trajectories.
- Signal Stability
- A v3 heuristic based mainly on current-versus-baseline on-off agreement, with a legacy defenseman pair-driver adjustment. It does not estimate portability.
- Reliability
- A 0–100 v3 sample, stability, and data-coverage index. It is not a calibrated probability.
- Data Coverage
- The share of fixed v3 zone weight backed by present inputs. Missing evidence shrinks an estimate toward neutral and lowers reliability.
- Mixed Situations
- Gravity v3 combines all-situations, 5v5, 5-on-4, 4-on-5, and regular-season EDGE aggregate inputs. It is not a single-strength model.
- CAP
- Contract component. Positive means the player is under market value; negative means the cap hit or term drags value.
- AGE / YNG
- Age-curve component: decline drag for veterans, youth projection for young NHL players with enough real signal. Not a blanket ELC bonus.
- UPS
- Upside component — development ceiling for players whose trajectory has not fully priced into production yet.
- Negative NAV
- Negative value does not mean a bad player. It means the contract is a trade liability relative to expected production, term, and market fit.