South Africa's Pieter Coetze had a heck of a two weeks to round out the summer, competing at the 2025 World University Games in Berlin before heading to Singapore to race in the 2025 World Championships. In Singapore, Coetze became a world champion in the 100 back, touching for gold in 51.85, one of the fastest performances in history. He also earned silver medals in the 50 and 200 back, breaking African records in both.