Legendary · Hand Grippers
Captains of Crush No. 4
Close the IronMind Captains of Crush No. 4, the heaviest gripper IronMind certifies, rated at about 365 lb.
How it's judged On IronMind's official No. 4 certification list. GripBoard IronMind #4 closes that aren't certified are shown separately.
- People
- 15
- Men
- 8
- Women
- 0
- Not stated
- 7
Most GripBoard lists don't give gender; it's filled in where another source does.
Certified by IronMind
6 peopleIronMind's official list, by year of certification. People who also appear on the GripBoard are listed here.
#AthleteCertifiedSources
1
USA · Men
Certified 1998
2
USA · Men
Certified 2003
3
UK · Men
4
Sweden · Men
Certified 2004
5
USA · Men
6
USA · Men
Claimed on the GripBoard (not certified)
9 peopleOn the GripBoard's community list, judged by its own rules, but not on IronMind's certification list. The lists give no dates.
#AthleteYearSources
Sources
- [1]Source: IronMind, Captains of Crush certification lists (Who's Who) (IronMind Captains of Crush certification), synced October 25, 2026. Records and rankings belong to IronMind; corrections belong with them.
- [2]Source: GripBoard Feat Lists, kept by the GripBoard community (The GripBoard — Feat Lists), synced October 24, 2026. Records and rankings belong to GripBoard; corrections belong with them.