Born in Toluca, she competed at her first high-profile, international competitions in 2000. She ran in the long race at the 2000 IAAF World Cross Country Championships, represented Mexico at the 2000 Summer Olympics over 5000 metres, and competed for the hosts at the 2000 IAAF World Half Marathon Championships in Veracruz, where she was 37th overall. She made her debut over the marathon distance in 2001 and was the runner-up at the Lalá Marathon in Torreón. Rodríguez competed internationally over 5000 m that year at the 2001 World Championships in Athletics.