Schmidt emerged as one of the top collegiate runners while at the University of North Carolina, winning back-to-back NCAA outdoor titles in 2002 and 2003. She won the United States Indoor title in 2006 and has placed in the top three nationally at the USA Outdoor Track and Field Championships six times. Her personal best for the 800 m is 1:58.61 minutes, set in 2011. Her personal best in the 1500m is 4:05.64, set in 2012.
In her third year at North Carolina she won a second straight NCAA Outdoor title, improving her best to 2:01.16 minutes in the process. She also won the ACC Indoor title and placed top three in both the 800 m and 1500 meters at the ACC Outdoors. In her final year, she did not top the podium at the major collegiate competitions, coming runner-up at the ACC Indoor and Outdoor meets, fifth at the NCAA Indoor Championship, and third over 800 m at the NCAA Outdoor Championship.[2]
A personal best of 4:05.64 minutes came en route to her win in the 1500 m at the 2012 Prefontaine Classic, where she beat world champion Jennifer Simpson.[7] She ran in the 800 m at the 2012 United States Olympic Trials and earned her second Olympic selection by beating Molly Beckwith to the third place spot.[8] She reached the semi-final stage at the Olympics.[9]
* Distances have varied as follows: 880 yards (1959–1986), 800 meters (1987–date) except 1000 meters (2015, 2017,2019). The 1958 race was run as an exhibition.