Asked if she needed any pageant protection, the 24-year-old martial arts champion joked: "I appreciate the security we have. But I feel confident."
Sanchez so excelled at tae kwan do that she was a teacher as a teenager.
A total of 51 contestants from each US state plus the District of Columbia squared off in the pageant's gown, swimsuit and interview segments in Baton Rouge, Louisiana, yesterday.
The old-school competition style -- redolent of high heels, sequins and mascara -- may be the bane of feminists.
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In addition, it includes scholarship money so that studies remain on the horizon for the winner.
One contestant intriguingly portrayed herself as someone who overcame devastating school bullying -- in part by becoming an excellent ice hockey player, a sport not often favored by girls.
Another contestant, Miss New Jersey USA Emily Shah, 18, is the daughter of a mother from the United States and a father from India. She grew up with her grandparents, speaks fluent Hindi and Gujarati, and dreams of a crossover Hollywood/Bollywood career.
Country duo Florida Georgia Line, rapper Nelly and Mexican pop band Camila provided musical entertainment for the extravaganza.