David and I went to the Lake Louisa Circuit race. The race started pretty easy and gradually picked up pace. There were several break attempts. I was feeling fine until II chased a break away rider. This was about half way into the race and I after that I couldn't breath. I was unable to inhale deeply and struggled to get oxygen. I went to the back of the pack for a lap but was unable to get any oxygen and everntually dropped out. After I dropped I continued to struggle with deep breaths, it was as if something was blocking my stomach/lungs.

David also complained that he didn't feel good but he finished much better than I. Perhaps our warmup was insufficient or maybe the humidity/heat got to us.