Lanni Marchant, born on April 11, 1984, in London, Ontario, is a distinguished Canadian long-distance runner known for her remarkable achievements in marathon running.
On October 20, 2013, Marchant made history by setting the Canadian women's marathon record at the Scotiabank Toronto Waterfront Marathon. She completed the race in an impressive time of two hours and twenty-eight minutes, surpassing the previous national record that had stood for twenty-eight years.
This record remained unbroken until March 10, 2019, when Rachel Cliff claimed the title with a new national record of two hours and twenty-six minutes and fifty-six seconds. Marchant's legacy in Canadian athletics is further highlighted by her participation in the 2016 Summer Olympics, where she competed in both the ten thousand meters and marathon events.