Katie Horne Set for One Last Junior World Challenge

Photo Credit: Full Stop Communications - Supplied

The South African swimmer is targeting a career-best performance when she takes on the world’s leading young open-water athletes in Santa Fe.

Gqeberha, South Africa (17 August 2026) – There’s one more major international challenge waiting for Katie Horne before she officially closes the book on her junior swimming career.

The 19-year-old swimmer will represent South Africa at the World Aquatics Open Water Swimming Championships in Santa Fe, Argentina, from 3 to 6 September, where she will compete in the 10km race, 3km knockout and relay events.

It will be a significant milestone for Horne, who first pulled on the South African colours internationally at just 15 in 2022. Seven years later, she returns to the junior world stage with far more experience and a very different perspective on what it means to compete at this level.

Horne, who is also in her first year studying dietetics at Nelson Mandela University, has spent the year learning how to balance the demands of university with life as a high-performance swimmer. She admits the academic workload came as something of a surprise, but the experience has forced her to become more organised and take greater responsibility for managing her time. The aim in Argentina is to produce the best performance of her career. A strong finish would obviously be welcome, but Horne says she’s learnt not to measure her progress solely by where she finishes.

Instead, she wants to arrive ready to compete, embrace the challenge and see what she can produce against some of the world’s leading young swimmers.

The conditions could make things even more interesting. With Santa Fe heading into winter, the water is expected to be cold, meaning wetsuits could be required.

“It’s a bit different because it fits your body differently and causes a bit more resistance around the shoulders,” she says.

Her experience in the sport has also taught her to appreciate the bigger picture. Alongside her coach Andrew Dean and her parents, Horne credits the people around her for helping her navigate the highs and lows of her career.

Now she’s ready to take that experience into one final junior international competition, while also becoming the role model she once looked up to.

Horne is particularly excited about supporting the younger members of the South African team, remembering what it felt like to attend her first international event.

“Everyone was such a good role model for me, so I am excited to be that for others.”

Argentina will be a chance for Horne to test herself one last time as a junior, celebrate how far she’s come and help the next generation feel a little more at home on the international stage.