Career
Mancisidor played National Collegiate Athletic Association tennis while at Pepperdine University and was an All-American. He was a quarter-finalist at the Guarujá Open in 1992, with wins over Peru"s Jaime Yzaga and German Marc-Kevin Goellner. The right-hander played Jeff Tarango in the opening round of the 1992 United States Open and was beaten in five sets.
He defeated Yzaga again in 1994, at the Bancolombia Open, when the Peruvian was ranked 19th in the world.
Coach
Mancisidor coached Women's Tennis Association top 10 player Garbiñe Muguruza between 2010 and 2015. Singles: (2).