Members of Holbeach Weight Training Club were pushed to the limit as they contested the annual Supersports contest.
Eight men battled through five gruelling events in the race to be crowned champion.
The first stage was the bench press, which saw contestants forced to do as many repetitions as possible – lifting a bar loaded with their own body weight.
Adam Dabrowksi (21 reps) set the early pace, but Tom Chenery took top spot with an incredible tally of 25.
Next up was the Fergus Walk, where two 45kh dumbbells are carried a maximum distance. Darren Henderson took the event to another level when he recorded an amazing 134.66 metres.
Then came another repetition event, which saw competitors lifting three-quarters of their bodyweight from the floor to their shoulders.
In what proved a particularly challenging event, Chenery again came out on top with 25 reps. He was closely followed by brothers Ian (24) and David Wilson (20).
Event four forced the muscle-men to flip a tractor tyre (six feet high, two feet wide) over a marked distance, before lifting it back to the start line in the fastest time.
Most competitors managed to record times under one minute, but Henderson went ahead with a swift 40.2secs.
That was somehow topped by giant powerflifter Craig Candler, who took maximum points with a time of 38.7secs.
The final event was a one mile race, with Ian Wilson (5.47mins) first ahead of Dabrowski (5.48mins) and Linden Wise (5.50mins).
That made Chenery the overall champion, with David Wilson and Dabrowski tied for second. After going over each individual event, Wilson edged second.