In the 2009–10 season he signed with Lobos Grises de la UAD Durango in the hopes of gaining visibility outside of Mexico.
[1] During the season, Robert Day, assisted by Robby Collum and Valtinho, led the team to the quarterfinals of the championship, being eliminated by Brasília of Alex Garcia, Guilherme Giovannoni and Nezinho dos Santos.
The Paraguayan Bruno Zanotti took charge to mark the American, which was fundamental for the title of the team from Rio de Janeiro.
After the match, Robert Day was chosen to the NBB First Team, beside Fúlvio de Assis, Marquinhos, Rafael Mineiro and Caio Torres.
[2] Robert Andrew Day now has 3 kids Lainey (the oldest), Cooper (the middle), and Beckett (the youngest).