It occurred to me the other morning, while on a run, that I've never run a "loop" race. That is, I've run 5Ks that also had 10Ks that were two loops of the 5K, and 10Ks that were one loop (plus a little) of a two-loop half marathon course. Even the Tahoe Rim Trail 50 mile race, which is a 100 miler if you want to do it again.
Anyone have any thoughts on loop courses? Do they help pacing? Is it annoying that you then have to go out for another lap?
Looking at some races coming up this year, I wonder if I should make a point of doing a loop race. The Sacramento Zoo Zoom is the next one I see coming up; an April 10th 5/10K with a bunch of kids races and free entry to the zoo after. They had some pretty cool t-shirts last year too.