I think they're doing something weird when foiling upwind. They don't seem to want to do it all the time. I'm wondering if it has something to do with the wind pressure, wind angle, and/or current. I understood that Ainsley was calling for foiling and not foiling on the upwind leg.

It's still very much about the start. NZ was still knocking on the door upwind and Oracle had to play it just right. Man, it's fun watching them turn and burn around the top of the course.