She played at the 2008 Women's Rugby League World Cup and at the 2013 Rugby World Cup Sevens. Watmore was picked for the final selection of Great Britain's national rugby sevens team competing at the 2016 Summer Olympics. Watmore was the first try scorer for Team GB in the 2016 Olympics. The team finished the tournament on 4th place losing against New Zealand in the semifinal and against Canada in the match for the bronze medals.