Before medical school, Esteban started agility with his golden retriever Gypsy, who achieved MACH3 and the Golden Retriever Club of America’s Agility Dog Hall of Fame distinction, with appearances at both USDAA and AKC national championships. During the course of medical school and the rigors of residency training that followed, his rottweiler Sammie earned MACH, with memorable placements in both the finals of the AKC Invitational and AKC National Agility Championship challenge round. His 16″ border collie Rook has appeared in the challenge rounds of the 2011 and 2012 AKC National Agility Championships, and won both international standard and jumpers at 26″ at the Reliant Park World Series of Dog Shows in 2009. In both 2014 and 2015, Esteban and golden retriever Gitchi (co-owned with Susan Fraser) competed at both the AKC National Agility Championship in the 26″ class and the AKC International Team Tryout. Esteban is the only handler to ever run three different large dog breeds at the AKC/FCI World Team Tryout. His current young border collie, Miriya, debuted at the end of 2014. In February 2016, Esteban and Gitchi made the 20″ finals at the 3rd Annual Masters Agility Championship at Westminster. They followed this up with a 20″ finals appearance at the 2016 AKC National Agility Championship.