Adrien Costa

Costa had a very successful career as a junior, with over 12 victories. In 2014, he won the junior national time trial championships, along with a second place at the junior world time trial championships.[3] In addition to these, he won the general classification and two stages of the Tour du Pays de Vaud. The following year, Costa won the Tour du Pays de Vaud for the second year in a row, along with another silver medal at the junior world time trial championships.[4] He enjoyed success in the Tour de l'Abitibi, winning the GC and earning two stage victories. The previous year, Costa had placed 7th overall at the race, winning stage 3. Costa booked yet another win at the Course de la Paix Juniors, when he won stage 3.

Costa's cycling success continued in the 2016 season as his first year as a professional when he earned his biggest result yet, when he won the Tour de Bretagne. Costa was the first American to win the French stage race. He stole the yellow jersey when he won the fourth stage in a solo breakaway.[5] Costa celebrated success in other similar events, winning the mountains classification placing 3rd overall in the Rhône-Alpes Isère Tour. He also placed 5th in Le Triptyque des Monts et Châteaux. At the Tour of Utah, Costa finished 2nd overall, 1:09 behind winner Lachlan Morton.[6] He earned another podium in the Tour de l'Avenir, finishing in 3rd place and won stage 4.

Costa last raced professionally in April 2017, before taking a break from July 2017 and subsequently opting out of his contract with Hagens Berman Axeon for 2018. Costa was reported to be studying outdoor leadership and tourism at Oregon State University.[2]