One FLRC Challenge course that's kind of an outlier is the Sweet 1600 — 1600 meters (rounded to one mile) on any track with a verified distance. This allows Challenge precipitants to log Challenge runs when they are away from the Ithaca area, i.e. on vacation.
After making more travel plans for the summer of '25 than I normally do, one of my Challenge sub-goals was to see how many different tracks I could log a Sweet 1600. I'm not much of a track runner and have never run track competitively, but this mission would make it a little more fun to run in quarter-mile circles from time to time.
Most notably is the three-laps-per-mile track on the level 4 deck of the Disney Wonder cruise ship, which I ran many times during vacation in August. I logged my lifetime furthest-from-Ithaca run (Challenge effort or otherwise) on that track while docked in