I have run this race 7 times and it never disappoints. You can't beat rounding the first corner and seeing the Pentagon expanse in front of you. Not only is this race in commemoration of the first responders of 9/11, the race is extremely well run and the post-race party is

"I ran this event with my fiance. Nothing strenuous, just a fun day out for a leisurely jog. We registered last minute on Sunday so were given shirts/bibs immediately. I was told the line to retrieve gear for those who pre-registered was an hour long unfortunately due

The water stations were the cleanest I've ever seen at a race. I didn't have any worries about slipping and falling on empty cups.
The tear down of timing signs began way too early.