Toni Mainprize serves as the General Manager of the Royal Cape Yacht Club (RCYC) in Cape Town, South Africa. In this role, she has been instrumental in overseeing the club's operations and strategic initiatives Under her leadership, RCYC has continued to uphold its rich heritage since its founding in 1905, while also embracing modern developments. Notably, during the club's 120th anniversary celebrations in 2025, Mainprize played a key role in hosting Her Royal Highness, Princess Anne, highlighting RCYC's enduring legacy and commitment to sailing excellence. Mainprize's tenure has also seen RCYC engage proactively with stakeholders such as Transnet National Ports Authority (TNPA) to secure the club's future operations. She has emphasized the importance of transformation and inclusivity, particularly through initiatives like the RCYC Sailing Academy, which aims to promote sailing among youth and previously disadvantaged communities. Through her dedication and leadership, Toni Mainprize continues to contribute significantly to the growth and sustainability of the Royal Cape Yacht Club and the broader South African sailing community.