PROPRIETARY RB ANALYTICS
Full Running Index
Running back impact, with the context put back in. FRI measures opponent-adjusted value, efficiency, explosiveness, receiving contribution and negative-play/ball-security avoidance.
FRI Leaderboard
Loading current rankings…
| RK | RB | FRI | RBV/OPP | ORBV/OPP | FRV | Value | Efficiency | Explosive | Receiving | Avoidance+ |
|---|---|---|---|---|---|---|---|---|---|---|
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Current rankings use paced qualification thresholds through the latest completed week. Historical season leaderboards use 150+ opportunities and 75+ carries.
Historical FRI Explorer
Choose a season or view the top FRI seasons under the same v0.2 framework.
| RK | SEASON | RB | FRI | RBV/OPP | ORBV/OPP | FRV | Value | Efficiency | Explosive | Receiving | Avoidance+ |
|---|---|---|---|---|---|---|---|---|---|---|---|
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How FRI works
FRI is standardized within each qualified season cohort on a 50-average, 15-point standard-deviation scale. The model is designed to reward efficient, explosive backfield production while controlling for opponent strength and limiting receiving-volume bias.
Adjusted Value
Opponent-adjusted EPA per opportunity (ORBV/Opp).
Efficiency
Positive-EPA success rate across rushing and receiving opportunities.
Explosiveness
10+ yard rushes and 20+ yard receptions.
Receiving
Receiving EPA per target plus catch-rate signal.
Avoidance+
Negative-play and fumble avoidance residualized against adjusted value.
CORE = .45 × ORBV_Z + .25 × Efficiency_Z + .15 × Explosive_Z + .05 × Receiving_Z
FRI_RAW = CORE + clamp(.10 × Avoidance+, −.35, +.35)
FRI = 50 + 15 × z(FRI_RAW)
