Any triathletes here?

Just under 2 weeks to my next race. Starting my taper this week. I have to admit that I'm getting a bit nervous about this race. I will be able to handle the swim and cruise through the bike, but I'm hoping to be able to stave off cramping and push through the 13.1 mile run. THAT'S going to be the painful part for me...the last half of that run.

Anyone done any others through the summer?