On October 27, 2017, Martínez signed as Baskonia head coach, replacing Pablo Prigioni,[5] twelve years after his previous experience in the Basque club. Baskonia made the 2017–18 EuroLeague playoffs, despite an initial 0-4 record when he joined the club. On November 16, 2018, Martínez parted ways with Baskonia after an opening 2-5 record in the EuroLeague, including the 99-84 road defeat at Budućnost VOLI.[6]
In March 2019, Martínez returned to Gran Canaria, which was struggling in the EuroLeague and became the club's third coach of the season.[7]
On June 24, 2019, Baxi Manresa announced the return of Martinez as head coach for the following season.[8]
On May 29, 2024 Valencia Basket announced they had hired Martinez again as head coach for two seasons.[2]
Coaching record
Legend
G
Games coached
W
Games won
L
Games lost
W–L %
Win-loss %
Note: The EuroLeague is not the only competition in which the team played during the season. He also coached in domestic competition, and regional competition if applicable.