McWilliams won with two sets of numbers. She played one set as a "straight," meaning she had to match the numbers drawn in exact order to win $500. She played the second set as a "straight/box," meaning she could match the numbers drawn in any order or in exact order to win $330, for a total of $830.
She purchased her winning tickets at Phyllis' Bastrop U PAK IT on East Madison Avenue in Bastrop.