Sara Richardson, 20, won a pair of taekwondo titles at the USA World Championships hosted by Master Stan Witz at the Riviera Hotel & Casino in Las Vegas last Saturday.

Sara Richardson, 20, won a pair of taekwondo titles at the USA World Championships hosted by Master Stan Witz at the Riviera Hotel & Casino in Las Vegas last Saturday.

The 4-foot-8 Richardson won in both the self defense and women's taekwondo forms condition category.

Richardson, a second-degree black belt, also won a forms title at the same event last year

The Medford resident, who trains with Rising Phoenix Martial Arts, has been involved in taekwondo for 11 years.