[4] He enjoyed success in the Tour de l'Abitibi, winning the GC and earning two stage victories.

[citation needed] 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.

[5] Costa celebrated success in other similar events, winning the mountains classification placing 3rd overall in the Rhône-Alpes Isère Tour.

[citation needed] 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.

[2] On July 29, 2018, Costa was severely injured in a rock climbing accident, resulting in an above-the-knee amputation of his right leg.