her establish herself among the world elite in the heptathlon. She won the Pac-10 title, then set a personal record of 6086 points to win her first NCAA outdoor title, before finally going on to take the national heptathlon title that summer. This earned her a spot on the national team to make her senior international debut at the 2009 World Championships in Athletics. As Canada's only representative in the event, she came in fifteenth place. In addition to her athletic breakthrough, she also received a mention for All-Academic honours that year. Theisen continued her strong college form into the following year, winning her first pentathlon title at the 2010 NCAA Indoors with 4396 points and repeating as the Pac-10 Outdoor heptathlon champion. She also took a second consecutive victory at the NCAA Outdoors, improving her personal record to 6094 points. This total ranked her within the top twenty athletes in her discipline worldwide that year. At the NCAA Outdoors, she had her second win of the competition when she helped the Oregon women's team to the 4×400-meter relay title. That year, she also led Oregon to a decathlon/heptathlon double at the Texas Relays, as she claimed the win alongside her schoolmate Ashton Eaton to whom she was engaged. They married in July 2013. In 2011, she won at the NCAA Indoor Championships for a second time and broke Jacquelyn Johnson's collegiate record mark with a total of 4540 points from five events. She suffered an injury in the outdoor season that year and missed ten months as a result. She returned at the Texas A&M Challenge in January 2012 and recorded a score of 4555 points to win the meet. This was a new collegiate and Canadian national record for the event, beating Jill Ross-Giffen's previous score, and Theisen improved her personal bests in the shot put (12.87 m) and high jump (1.88 m) events. A third NCAA Indoor title came two months later with a winning score of 4536 points, which included a 60 m hurdles best of 8.25 seconds. She also repeated as the heptathlon champion and her personal best score of 6440 points included four new bests in individual events (hurdles, shot put, long jump and javelin). Professional Theisen placed second at the Canadian Track and Field Championships and went on to finish eleventh in the heptathlon at the 2012 London Olympics. A score of 6376