Wall Sit: 350 Kg: On 5th June 2023 at Mark's Personal Trainer's private gym in Doncaster, Mark started the Wall Sit with 0 weight and then  various weights from 25kg 20kg 15kg 10kg 5kg were placed on his legs progressively along with weighted heavy 2 sets dumbbells and a weighted 30kg Slam Ball until 360kg weight was reached. 

The Total weight was held for 2 seconds. The weights were then removed progressively

Total time in the Wall Sit 2 minutes 54 seconds.