Iron Index
Tackles + interceptions + clearances per 90, weighted by concession rate.
Formula
Defensive output normalized by how often the player's team concedes when they're on the pitch. Rewards defenders who do volume work AND keep clean sheets, not just one or the other.
How to read the number
What it's good for
- Compare CB depth across clubs
- Spot under-rated reliable defenders
- FPL defender selection (clean-sheet probability)
Real-world example
Van Dijk Iron Index 14.2 — top 5 across top-5 leagues.
Explore other metrics
22 in total — open Metrics Lab for the grid.
Clutch Index
How much a player over-performs their baseline in high-pressure moments.
Hot Hand
Rolling z-score of goal contributions over last 5 matches vs season baseline.
Ghost Matches
Games where a player was statistically invisible.
Travel Warrior
Performance delta on the road vs at home.
Sniper Score
Shot quality beyond xG — actual conversion adjusted for chance difficulty.
Pressing Index
Pressures + counter-press recoveries per 90 in the opposition half.
See Iron Index on real players.
14-day Pro trial — open Player Lab and search any player.