He won the 2024 WRC3 Championship with Rogelio Peñate as his co-driver.

[1] At Rally Chile, he retired from the round after he suffered a technical fault, which meant the driver's championship of the WRC3 was won by Roope Korhonen.

[2] In the 2024 season, Domínguez was leading the WRC3 before the Rally Chile.

In the race, the other participants in the WRC3 suffered from technical problems and Domínguez was able to drive in a strong lead position and secured the WRC3 driver's championship by driving to victory.

[3][4] Domínguez entered a triple campaign in 2025, driving a Ford Fiesta Rally3 in the Junior WRC and WRC3, as well as a Toyota GR Yaris Rally2 in the WRC2.