Joyce is well-known in the Dutch equestrian world. She won many gold, silver and bronze medals at the Dutch National Championships for Juniors, Young Riders and in the Small Tour. At six European Championships, she won team gold three times, team silver three times and individual bronze twice. At the moment she competes the approved breeding stallion Wup (by Welt Hit II) at national and international shows.
Joyce is a student of Dutch team trainer and coach Sjef Janssen. She is also employed at Anky van Grunsven's 'Anky Education Center', being responsible for e-learning, web-marketing & social media, and also teaches students from both The Netherlands and abroad.
Joyce is a true equestrian multi-tasker. She judges up to Intermediaire I, teaches students all over the world, works as equestrian tv commentator for Eurosport and has translated, written and published equestrian books.