If you're a bike enthusiast and haven't yet been to the Boise Twilight Criterium, you've been missing out for 30 years—do yourself a favor and don't make it 31. As always, the Criterium is an all-day affair, with road closures beginning at 7 a.m. and races spanning the day until trophies are hoisted at the 10 p.m. Awards Ceremony. Set the little ones loose for the Kids' Ride with Olympian Kristin Armstrong at 1 p.m., then join the 20,000-strong crowd in cheering on some of the world's best athletes as they fly down Jefferson Street on two wheels. Races begin at 1:45 p.m. for aspiring pros, followed by a Paracycle Race at 5:45 p.m., Boise GreenBike Celebrity Race at 6:15 p.m., Women's Pro Race at 7 p.m. and Men's Pro Race at 8:15 p.m. Check online for the full schedule of events.