As an accomplished junior skater, and world record holder, St-Gelais placed first overall at the
2007 Canada Games with four gold (500m, 1000m, 3000m and relay) and one silver medal (1500m). St-Gelais was named team Canada's "rising star" of 2009. Marianne St-Gelais is the 2009 world junior champion and world junior record holder in the 500 metres with a time of 43.922 seconds. St-Gelais won her first ever World Cup medal in 500m short track speed skating at
Vancouver in 2009. St-Gelais was a member of the Canadian team that attended the
2010 Winter Olympics in both the 500m and 3,000m relay. Prior to these Olympic games she had yet to win any medals at an Olympics or world championships. On February 17, her 20th birthday, she won a silver medal in the
500 metres. She followed this success with a silver medal on February 24, in the
3,000 metre relay, along with
Jessica Gregg,
Kalyna Roberge and
Tania Vicent. After the Olympics St-Gelais continued on her success at the Olympics with a bronze in the 500m at the
2010 World Championships as well as a silver in the 3,000m relay. At the
World Team Championships St-Gelais was a part of the Canadian squad that won silver in the event. This concluded what was the most successful season of her young career, with 2 Olympic silvers, 2 world championship silvers, and a worlds bronze. St-Gelais ended the
2010–11 ISU World Cup season as the 500 m World Cup Champion. At the 2014 Winter Olympics she took a third Olympic medal as part of the Canadian team in the 3,000 m relay.
2018 Winter Olympics In August 2017, St-Gelais was named to
Canada's 2018 Winter Olympics team. However she was unable to secure a medal there, being disqualified in the
500 m for interference. However, after the Games she competed in
her eighth World Championships, where she secured a bronze medal. She retired from competition that year. ==References==