They said it was 2.7 miles, and we ran it about 2-4 times a week, sometimes it was a sprint/jog course maybe a bit longer. I went through in the spring, it might have changed. I'm sure you'll be fine, the PT is certainly constant, but the worst is being an adult and getting treated like a child for 12 weeks. It doesn't take long to get old, but thats just one of the hoops to putting on the bars. Good Luck, like I said, you'll be fine!