24-Hour Ab Wheel Challenge
- 10,000 Ab Wheel Roll Outs
Tuesday 2/25/20 Grand Master Dinh beat his own world record
13-Hour Ab Wheel Challenge
- 6,000 Ab Wheel Roll Outs
Tuesday 1/30/20 Grand Master Dinh setting a world record
25 Year Freedom Anniversary (2000)
- 25-Hour 100 Mile Run
30 Year Freedom Anniversary (2005)
- 31,025 Sit-Ups in 30 Hours in New York Times Sq.
35 Year Freedom Anniversary (2010)
- 35,425 Sit-Ups in 35 Hours on US Capital Hill Lawn
40 Year Freedom Anniversary (2015)
- 40,000 Sit-Ups in 40 Hours at the Vietnam Wall in DC