The annual Air Race Classic — the all women's air race that had its beginnings with the Powder Puff Derby — returns in 2021 in a revamped version: An Air Derby, a one-day circuit race that can be flown on a user-determined course any time between June 12 and 26, 2021. Teams consist of women pilots, with a pilot and co-pilot. Additional team members can fly along within weight and balance (and top speed) limitations. The route must be flown in day VFR conditions, and routes outside the US are allowed.