In case you were worried this competition was the wild west, it's not. There are rules, man. Guinness requires competitors eat one burger at a time while only using a single hand. Eathletes (not a word, but it should be) can have up to one condiment on each burger and may have a glass of water in their free hand. However, unlike the Nathan's Hot Dog Eating Contest, these competitive eaters may not dunk their food into the water.
Guinness notes there's a similar category for most burgers chowed down in three minutes. The record is held by Japan's Takeru Kobayashi, who kept Furious Pete's pace going the whole way and ate 12 burgers in three minutes. Gross. But also, you kinda want a burger now, right?