LeBlanc was born in Atlanta, Georgia, to a Dominica father and a Jamaican mother, Vans LeBlanc and Winsome LeBlanc, who had temporarily relocated to Atlanta to avoid the dangers of Hurricane David. LeBlanc grew up in Dominica until age eight when her family moved to Maple Ridge, British Columbia. LeBlanc began playing soccer at age 12 and was named one of the top 20Division I recruits by USA Today in 1997, even though Maple Ridge Secondary School did not have a girls soccer team. She was also an all-provincial basketball player and was voted British Columbia's Most Defensive Player in basketball in 1997.
LeBlanc attended the University of Nebraska and earned a degree in business administration. She played goalkeeper for the Nebraska Cornhuskers from 1997 to 2000 and became one of the school's most decorated goalkeepers in the history of the program. She was a finalist for the Hermann Trophy in 2000 and named to the 2001 Umbro Select All-Star Classic Women's Elite College Team. She was also a two-time All-Big 12 selection and was named an All-American.
In 2009, she was acquired in the first round of the 2009 WPS General Draft by the Los Angeles Sol. She started and played in 19 regular-season matches for the team, saving 78 of 93 shots. LeBlanc was named to the 2009 WPS All-Star Team Starting XI.
On January 11, 2013, it was announced that LeBlanc was one of two Canadian national team members selected to join the Portland Thorns FC by way of weighted allocation. On January 13, 2014, Portland Thorns FC announced that LeBlanc had been traded to the Chicago Red Stars in exchange for the 2nd round draft pick in the 2015 NWSL College Draft.
Chicago Red Stars
LeBlanc finished her 2014 season with 76 saves and a goal against per game average of 1.0, in 21 matches; just behind league leaders Alyssa Naeher's 106 saves, and Hope Solo's.90 goal against average. Because of participation in 2015 FIFA Women's World Cup LeBlanc played eight matches for Red Stars in 2015. At the end of 2015 season, LeBlac called it a career and retired from professional soccer. For her performance in her last professional match LeBlanc was named NWSL Player of the week of week 21.
International
LeBlanc represented Canada at five FIFA Women's World Cups, at the 2008 Olympics and at two Pan American Games, winning the gold medal with the national team at the 2011 Pan Am Games by stopping two penalty shots in the final. She made her one hundredth appearance for Canada in March 2012 and later that year was part of the Canadian team that won the bronze medal at the 2012 Summer Olympics. Prior to 2015 FIFA Women's World Cup, LeBlanc announced her retirement from international soccer at the end of the tournament.
Coaching career
LeBlanc served as an assistant coach at Rutgers University from 2005 to 2009. She has also served as a goalkeeper coach with the Canadian under-15 national team, and developed goalkeeping clinics throughout the United States and Canada.
Personal life
LeBlanc was raised Roman Catholic but later became a Baptist while studying in college. LeBlanc married Jason Mathot in October 2016. In April 2020, she gave birth to their daughter.
