The middle of seven children from London, Ontario, Canada, her first sport was ice skating. In elementary school she ran as part of her curriculum, and as a great way to cross train for figure skating. By the time she hit high school, she also saw it as a way to make new friends. In grade 10, Marchant joined the high school cross-country team, and quickly replaced her skating time with running time. Marchant decided to quit skating the following holiday season, and joined The London Western Track and Field Club.
Running career and education
Marchant kept up her running throughout high school, racing at track meets, and regional championships, eventually earning a scholarship to the University of Tennessee at Chattanooga. After a frustrating freshman cross country season, she won her first conference championship in the Steeplechase, and went on to win several more titles in the 5,000m, 10,000m, and in cross country. In 2007, after representing the Mocs for 4 seasons, Marchant graduated from UTC with an economics pre-law degree. She moved on to law school at the University of Ottawa, and Michigan State University, graduating in May 2011 with two law degrees. It was during this time that she turned her focus towards road racing, and developed an affinity for the open road. With a hefty work load, and ever increasing mileage, she has claimed "the tenacity I draw on to run marathons was forged during this time".
International career
Marchant has represented Canada at the Chiba Ekiden relays, at the 2013 World Championships in the marathon event, and at the 2014 Commonwealth Games in Glasgow, Scotland, in the marathon event. Marchant studied law at Michigan State University where she also ran. Marchant placed fourth at the Canadian 10k championships in 2011. The same year, she clocked a 2:44 at the Chicago Marathon. In 2012, Marchant finished the Rotterdam Marathon with a time of 2:31:50. While Marchant's time met the IAAF qualifying standard of 2:37, it did not meet the Canadian Olympic "A" standard of 2:29:55, so she was not eligible to represent Canada at the 2012 London Olympics. A subsequent appeal was denied by Athletics Canada. In 2013, Marchant represented Canada in the women's marathon at the 14th IAAF World Championships in Moscow. She finished in 44th place with a time of 3:01:51, citing intense heat, and humidity as causative factors. Suffering from intense leg cramps, she repeatedly stabbed her leg with a safety pin in an attempt to correct her condition. It did not work. In 2014, she was the fastest female Canadian runner at the Boston Marathon, where she had a time of 2:30:34. Also in 2014, at the Tom King Half-Marathon, Marchant clocked a Canadian half-marathon record time of 1:10:47. Marchant placed fourth in the women's marathon event at the 2014 Commonwealth Games, in Glasgow, Scotland, with a time of 2:31:14. In July 2016 she was officially named to Canada's Olympic team.
