Marco Diaz Castañeda

Marco Díaz Castañeda is a Mexican race car driver from Mexico City. He was the runner-up in the 2018 TM Lights series championship, and the only driver to pose a threat to Saul Fischel for much of the back half of the season. Castañeda made his TM Master Cup series debut in his home race in 2018, before qualifying on the pole for his debut as a full time driver in 2019.

Castañeda is considered one of the stronger oval track specialists among the rising stars in the TM Master Cup series, but has also shown speed on the road courses, taking his first Master Cup win in the 2019 Round of Georgia at Road Atlanta.