|Rio 2016 Paralympic Games||—||—||—|
|Toronto 2015 Parapan American Games||—||6||—|
|Pasadena 2014 Pan Pacific Para Championships||—||2||1|
- At the Rio 2016 Paralympic Games, Lavallière swam in three events. His best finish was 10th in both the 50-m freestyle and the 50-m butterfly. He finished 12th in the 100-m freestyle.
- He contributed to a Canadian record in the 34pts 4×100-m medley relay, which finished 7th.
- At the Gold Coast 2018 Commonwealth Games, Lavallière finished fourth and set a new Canadian record in the S7 50-m freestyle.
- Won four individual and two relay silver medals at the 2015 Toronto Parapan Am Games. Was second in the 50-m freestyle, 200-m IM, 100-m freestyle, 50-m butterfly, 4×100-m 34 pt freestyle relay and 4×100 34 pt medley relay. He set a Canadian record in the 100-m backstroke.
- Swam four individual events and two relays at the 2015 IPC Swimming World Championships in Glasgow, Scotland. He finished 6th in the 200-m IM.
- At the 2015 Speedo Can Am Para-swimming Championships Lavalliere reached the podium four times.
- He won gold in the 100-metre and 400-m freestyle plus was second in the 50-m free and 200-m individual medley.
- Lavallière enjoyed his biggest international success in 2014 with a triple medal performance at the Pan Pacific Para-swimming Championships. Lavallière earned silver medals in the 50-m freestyle and 100-m freestyle and bronze in the 50-m butterfly.
- At the 2014 Can Am Championships, Lavallière lowered Canadian records in the 50-m butterfly, 100-m butterfly, 50-m breaststroke and the 200-m individual medley.
- At the 2013 IPC World Championships in Montreal, he knocked at the podium door in two events, finishing fourth in the 200-m individual medley in Canadian record time and fifth in the 50-m butterfly. His time in the 50-m fly was both a Canadian and Pan American record.
- In 2011, he won a bronze medal at the Pan Pacific Para-swimming Championships in the 50-m freestyle.
- In 2010, he competed at the IPC World Championships in Eindhoven, the Netherlands and was Canada’s flag bearer in the opening ceremonies.
- In 2009, Lavallière made his international debut at the IPC short course world championships in Rio de Janeiro.
- Also in 2009 at the Canada Games Lavallière won a gold and four silver medals for Team Quebec.
- Sports management student at Universite Laval.
- Instagram: @jmlavalliere
- Pre-race ritual: Always wipes his block at least three times before a race
- Favourite thing to do away from pool: Spend time with friends who aren’t swimmers
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