10 kph winds changing from 180• to 219 • and 0M waves changing from 243• to 204•. I tried to follow the head waves out directly and tail waves directly coming back. Even though the waves were reported as 0M, they definitely impact your times. I had never done a 10k before (except a 12k downwinder), so I was trying to conserve some energy going out into the headwind. My splits were around 6:55/k! I thought, oh man, my run is done. However when I turned around and started back I was regularly hitting between 4:55-5:20, so I thought wow, I might have a shot at a decent run! Very exhilarating linking up series of waves. Every time I saw my nose go down and I started feeling a surge coming under my seat I accelerated and kept my power on, knowing more waves were coming. So much fun! I know now that so can go out a little harder. Lessons learned, great day.