A 17-year-old Dallas-area high school transgender wrestler who is transitioning from female to male has won a girls regional championship after a female opponent forfeited the match. Mack Beggs, a Euless Trinity High School junior who is undefeated this wrestling season, hugged losing opponent Madeline Rocha, from Coppell, on the victory stand Saturday after their match for the 110-pound Class 6A Region 2 championship never took place when Rocha declined to wrestle.