Early in the first round of the first men's heat, it was clear the workout would be a challenge that would send many athletes home from the games with a solid kick in the ass.
The powerful Josh Everett was in the first heat, and other competitors were watching him closely to get a feel for the WOD. Everett is the best Olympic lifter in the Games, but 75 lb. is a met-con weight that had him struggling for breath, wincing and grabbing his back.
Vic Zachary from Bayou City CrossFit was in the same heat and said the WOD was brutal.
"On everything else today you were able to rest... but with this your legs were already burnt and you just keep going," Zachary said. "Your snatch and your wall ball, it was just legs, legs, legs."
Zachary tried to do his snatches in sets of fives by the middle of the second round. He also only had about five wall-ball reps disallowed, which was a sharp contrast from the Affiliate Cup, where many athletes struggled to reach the 10-foot target.
Nevertheless, six male competitors were marked DNF in the first heat, and seven women failed to complete the WOD.
Michelle Benedict just managed to beat the buzzer and finish the WOD.
"My grip gave out at the end," she said. "It was literally mind-boggling. I had no grip left."
Benedict said the wall ball was harder than the snatches, mostly because you had to be accurate in hitting high target for a lot or reps.
"The snatches were 'just get through them.'"
Lauren Plumey experienced the dreaded DNF for the first time and was disappointed in herself.
"The wall ball (was harder)," she said, "Because you had to be so precise. That's why I went slower because I missed 10."
She continued: "I thought it was definitely fair. We have to be accurate. That's one of the elements of fitness. It's an accuracy test, and it's a met-con."
Plumey also ran into a sore back courtesy of the snatches.
"My back was killing me because my form was awful," she said. "When I saw the weight for the snatch I was disappointed because I like snatching. But I know they did this light because I they didn't want anyone to hurt themself."
At the end of the night, Jason Khalipa, Tommy Hackenbruck and Blair Morrison had the top times. The overall leader is Hackenbruck, followed by Moe Kelsey and Mikko Salo.
For the women it was Carey Keppler, Sarah Dunsmore and Rebecca Voigt who crushed the WOD, with Tanya Wagner, Annie Thorisdottir and Dunsmore making up the top three overall.
The top 16 competitors now advance to the final day of competition.