Kat is one of Britain's leading trampoline gymnasts and has been for a number of years. She finished the 2011 season as the world number one both individually and in synchronized trampoline with partner Amanda Parker. At the 2012 Olympic Games she missed out on a final spot by just one place. In 2013, at the World Games, Kat was crowned women's synchro Champion with Amanda Parker repeating that feat at the World Championships along with winning team gold. At the 2015 European Games Kat won individual silver and then in 2016, at the European Championships in Valladolid, Kat took individual bronze as well as being part of the team that won gold. After making the team for the 2016 Olympic Games, Kat qualified for the final, making British history, before finishing 6th. In 2017, after winning silver at the British Championships, Kat took home team bronze from the World Championships in Sofia.