Player Durability IQ

Durability IQ Ironman — durable and consistent

Composite durability score (0–100) for every NFL player who has at least two seasons of game data. Era-adjusted availability rate, IR-season frequency, and injury-designation severity — all from the StatVault encyclopedia.

1683Iron

2816Durable

2247Typical

2763Fragile

9509total

Formula

Availability rate (60%) — career games played ÷ games scheduled, era-adjusted (17 from 2021, 16 from 1978, etc.)
IR-season penalty (20%) — 100 − (IR-seasons ÷ total-seasons × 200); a season below 50% availability counts as an IR season
Designation severity (20%) — 100 − (Out-designated games ÷ scheduled × 300); amplifies sustained injury status from nflverse weekly reports (2009+ only)

Iron ≥ 90 · Durable ≥ 75 · Typical ≥ 55 · Fragile < 55. Requires ≥ 2 seasons.

Rankings as of 2026-10-18, as declared by the corpus that produced them.

StatVault · statvault.org/leaders/nfl/durabilityJSON

1
Alejandro VillanuevaOTIron
100% availability0/7 IR seasons
100
/ 100
2
Alfredo RobertsTEIron
100% availability0/5 IR seasons
100
/ 100
3
Andrew Franks

Showing top 100 of 9509 qualified players.