The GNC Grip Gauntlet (officially GNC Pro Performance Grip Gauntlet) was a strength athletics contest that tested the grip strength of athletes over three disciplines, each designed to test one of the three recognized facets of hand strength: crushing; pinching and supporting.
It was developed by brothers Brad Gillingham and Wade Gillingham and became an internationally recognised contest featured at some of the world's most prominent strength athletics events and expos, including the Arnold Strongman Classic and various WSM Super Series Grand Prix's. The last time the GNC Grip Gauntlet was run in a competitive format was the 2010 Arnold Classic. Since then it has changed to an informal challenge with no official results maintained. Prizes are still awarded for successful completion of the challenge.