Alia Armstrong, a sophomore at LSU, took third in the women's 100-meter hurdles final in a wind-legal 12.47 seconds at the Toyota USATF Championships at Hayward Field in Eugene, Ore. Armstrong, the reigning NCAA Division 1 champion, has an all-conditions best mark of a wind-aided 12.33 at the 94th Clyde Littlefield Texas Relays in March.