The 1st Annual Ironman 70.3 National Harbor will take place on Sunday, August 5, 2012 with an anticipated 3,000 registered participants making this race one of the largest 70.3’s events in the world. The race is located at the beautiful National Harbor in the Metropolitan Washington DC Area, home to the largest concentration of USAT regional triathletes in the country. With three major international airports close by, plenty of hotel space and a great course design, this 70.3 is destined to become one of the greatest on the Ironman calendar
I don't know the route, but I've ridden that area. It's rolling hills and narrow roads in many areas. The roads out there are not draft friendly, but with 3,000 participants it probably will be.
My marathon PR is "under three, high twos. I had a two hour and fifty-something."