Pickleball Tournaments in San Carlos, Sonora Mexico Friday, December 8, 2017: Sun & Fun Round Robin Pickleball Tournament. Thursday, February 8 to Monday, February 12, 2018: Sombrero Showdown and Amigos Cup. Under 60 & Over 60 (SSIPA) International Tournament. Register here (scroll to bottom to register). Tournaments outside San Carlos: You can find a list of tournaments from all over the USA and other countries at pickleballtournaments.com.