I finished in 34:30, which is about what I expected. Training for it, I ended up at an 8 minute mile pace on the treadmill so my time wasn't too far off of that pace in sand.
I am by no means a serious runner and my team came in 186th place in the mixed division. We had fun and I am definitely participating again next year. Running on sand was tough, so I think I want to do a different leg next year.