Those are high school boys. Their poor mothers.
The pole climbers had to do a bunch of fancy rigging once they made it to the top. More than once a cable slipped and they had to climb back down. Lots of audible groaning from the crowd during this part.
As part of the main event relay, the competitors had to jump over several logs while carrying and dragging all that heavy stuff. And they made it look easy.
The last step in the relay is to squash a Coke can. With a tree.