Cian rode in his first Nations Cup for Ireland at age 19. He won team silver at Junior Europeans in 2000. He won an individual bronze and a team gold medal at European Championships in 2017 and competed in three World Equestrian Games. He has also contested two FEI Nations Cup finals and was part of Ireland’s winning team in 2019 (fourth individual finish) which also secured the team’s qualification for Tokyo. He rides Kilkenny (previously MHS Fernhill), a horse he took over in October 2020. This is Cian’s third Olympics and he is Ireland’s only equestrian medallist, winning bronze on Blue Loyd in 2012.