Jenna Martin made her Olympic Games debut in 2012 and competed in the 400m event finishing in 23rd place. Martin qualified for London after finishing first at the 2012 Canadian Nationals.
In 2011, Martin competed at the World Championships on the 4x400m team that would finish fifth and also competed at the 2011 World University Games in Shenzhen, China where she finished sixth in the final. She also won the 2011 Canadian Championships in the 400m event and holds a bronze medal from 2008.
Martin was named the 2007 Canadian Junior Athlete of the Year by Athletics Canada and won the bronze medal at the 2003 World Youth Championships in Sherbrooke, Quebec during her junior career.