Tatjana Smith won a gold and silver medal at each of the past two Olympics South Africa's most decorated Olympian Tatjana Smith was in tears as she announced that she has switched allegiance to the Netherlands. The 29-year-old won four Olympic breaststroke medals, including two golds, before retiring after the Paris 2024 Games. She came out of retirement in September and hopes to compete in the 50m breaststroke as the event makes its Olympic debut at the 2028 Games in Los Angeles.