I've been trying to run all-terrain, since the race is all-terrain. So far the best I've done is two miles. But this race is a 5K (over three miles). And there are obstacles (and zombies!). So, I need to be able to run well over three miles no sweat. I found a cool tool online that helps log local running routes. It's on walkjogrun.net.
Here I go, 2.8 miles. I'm going for it. Hit you up when I'm done.
UPDATE: I ran 29:38 the first time.
Then I went back two days later and ran it in 27:52.