[1] In March 2017, after starting the season as a manager of the Cadete squad of Damm, Costa moved to CE Manresa to take over the Juvenil team.
[4] On 28 April of the following year, he agreed to return to Manresa to become their first team manager in Tercera División, while also working as a sporting director.
[7] On 26 July 2023, Costa was named at the helm of fellow fourth division side CF Badalona Futur.
[8] The following 31 March, he left the club to take over Segunda División side FC Andorra on a contract until June 2025.
[9] Costa's first professional match in charge occurred on 6 April 2024, a 2–0 away win over CD Eldense which took the Tricolors out of the relegation zone.