In 2005–2006, her rookie bobsleigh season, Moyse and her partner
Helen Upperton won the Canadian Championships and earned four medals on the World Cup circuit including a gold at an event in
St. Moritz,
Switzerland. Heather also set push start records on five international tracks. At the
2006 Winter Olympics, Moyse and Upperton finished in fourth place in the two-man bobsleigh event, missing bronze by five one-hundredths of a second behind the host Italian team. The pair set the push start record for the Olympic track with a 5.16-second start time in their first heat. After a one-year absence due to educational commitments, Moyse returned to the World Cup circuit in 2007–2008 as one of two brakeman for Canada 1 pilot Helen Upperton. In four races the duo earned a silver, bronze and two 5th-place finishes. At the 2008 World Championships in Altenberg, Germany, Moyse raced with Canada 3 pilot
Lisa Szabon and the pair finished in 11th place. During the 2008–2009 World Cup season, Moyse returned from a serious shoulder injury (incurred while playing rugby for Canada). In her only race with Canada 1 pilot Upperton the duo won gold in Igls, Austria. Moyse and Canada 2 pilot
Kaillie Humphries recorded a 5th in St. Moritz, silver in
Whistler and 5th at the 2009 World Championships in
Lake Placid, New York. In four other races, Moyse did not race with any of Canada's three sleds. During the 2009–2010 World Cup season, Moyse & Humphries finished second overall behind only
Sandra Kiriasis and won four medals including gold in
Altenberg,
Germany. They set or tied the track start record in every race in which they competed together. She won a gold medal in the
Two-woman competition at the
2010 Winter Olympics with
Kaillie Humphries. The silver medal was won by fellow Canadians
Shelley-Ann Brown and
Helen Upperton. It marked the first time at the 2010 Olympics that Canadians had won two medals in one event. For winning the gold medal, Moyse was on the cover of
Hello! Canada in March 2010. Moyse joins former
University of Toronto student-athlete
Jayna Hefford as the only University of Toronto graduates to claim a gold medal at the 2010 Vancouver Winter Games. Moyse missed the first half of the 2010–11 World Cup bobsleigh season due to an ankle injury suffered in the final game of the 2010 Women's Rugby World Cup. Moyse returned to the Canadian Bobsleigh Team in the fall of 2013, earning a spot as the top brakeman on the 2014 Canadian Olympic team. Heather and
Kaillie Humphries repeated as Olympic gold medallists at the 2014 Sochi Olympics, pulling ahead of rival USA 1, piloted by
Elana Meyers and braked by
Lauryn Williams, on the final run of the four-heat competition. The pair became only the third Canadian Winter Olympians to repeat as gold medalists in a non-team sport and the only female gold medalists from the Vancouver Olympics to repeat as gold medalists in Sochi. Humphries and Moyse were also selected by the Canadian Olympic Committee as Canada's flagbearers in the closing ceremonies. Moyse retired from bobsleigh after the 2014 Olympics, however a couple of months before the start of the
2017–18 season she decided to return to the sport after push athlete-turned-pilot
Alysia Rissling contacted her about it in August 2017, having turned down the opportunity to return to competition with Humphries the previous year. With Rissling as driver, the pair finished 6th in the
two-woman bobsleigh event representing
Canada at the 2018 Winter Olympics.
Start records Leading up to the 2010 Winter Olympics, Moyse held or had tied nine track start records with either
Kaillie Humphries or
Helen Upperton, including every track on the 2009–2010 World Cup circuit. Three of those records have since been broken. Moyse also won the 2013 World Push Championships, held in
Calgary,
Alberta, Canada in November 2013. Start records held by Heather Moyse:. •
Calgary – 5.45 in Nov 2013 with
Kaillie Humphries •
Cesana – 5.16 at 2006 Olympics with
Helen Upperton (tied by
Kaillie Humphries and
Shelley-Ann Brown in 2009) •
Park City – 5.20 in 2009 with
Kaillie Humphries, current record of 5.10 held by
Elana Meyers and
Aja Evans of the USA •
Lake Placid – 5.46 in 2009 with
Kaillie Humphries, current non-World Cup record held by
Elana Meyers and
Aja Evans of the USA •
Winterberg – 5.51 in 2014 with
Kaillie Humphries •
Altenberg – 5.74 in 2009 with
Kaillie Humphries •
Königssee – 5.25 in 2010 with
Kaillie Humphries, current record 5.20 in 2013 by
Elana Meyers and
Aja Evans of the USA •
Igls – 5.50 in Jan 2010 with
Kaillie Humphries •
Whistler – 5.11 twice at 2010 Olympics with
Kaillie Humphries, tied by
Elana Meyers and
Lolo Jones in Nov 2012, non-World Cup record broken again by Humphries and Moyse with a 5.07 start at 2013 Canadian Championships held in October 2013
Career highlights ;Olympics: :2006 –
Torino, 4th with
Helen Upperton :2010 –
Vancouver, 1st with
Kaillie Humphries :2014 –
Sochi, 1st with
Kaillie Humphries ;World Championships: :2008 –
Altenberg, 11th with
Lisa Szabon :2009 –
Lake Placid, 5th with
Kaillie Humphries :2011 –
Königssee, 3rd with
Kaillie Humphries :2011 –
Königssee, 3rd with
Kaillie Humphries (team event) ;World Cup: :2005 –
Calgary, 3rd with
Helen Upperton :2005 –
Igls, 2nd with
Helen Upperton :2006 –
Königssee, 2nd with
Helen Upperton :2006 –
St. Moritz, 1st with
Helen Upperton :2008 –
Cortina d'Ampezzo, 2nd with
Helen Upperton :2008 –
St. Moritz, 3rd with
Helen Upperton :2008 –
Igls, 1st with
Helen Upperton :2009 –
Whistler, 2nd with
Kaillie Humphries :2009 –
Lake Placid, 3rd with
Kaillie Humphries :2009 –
Altenberg, 1st with
Kaillie Humphries :2010 –
Königssee, 2nd with
Kaillie Humphries :2010 –
Igls, 3rd with
Kaillie Humphries :2013 –
Calgary, 1st with
Kaillie Humphries :2013 –
Park City, 2nd with
Kaillie Humphries :2013 –
Lake Placid, 1st with
Kaillie Humphries :2014 –
St. Moritz, 1st with
Kaillie Humphries ==Rugby union==