The Challenger Standard In The Heart Of Mexico In 2015, Monterrey earned Tournament of the Year honours in its debut season on the ATP Challenger Tour. Ever since, the prestigious event has continued to grow and expand and has found a new home at the Club Sonoma. The facility has welcomed the brightest stars on the circuit, with Ernesto Escobedo lifting the trophy in 2016 and veteran David Ferrer claiming the title in the final Challenger event of his storied career. Challenger of the Year: 2015