The Bailey Glasser Boise Twilight Criterium, celebrating 38 consecutive years of crit racing in Boise, is excited to welcome thousands of racers and spectators to downtown Boise this year on Saturday, July 19, 2025! The longstanding Twilight Criterium is proud to be part of the American Criterium Cup (ACC) series, which brings together the fastest riders and teams in the country (and beyond) to compete for a combined series purse of $500,000, split evenly between women’s and men’s fields. The ACC highlights the top 8 iconic criterium races through 8 different states in the US, Boise sitting #3 in the series calendar.