
Mate Karpati (17, Hungary, World Aquatics bio here, @karpati.mate) held off Colin Jacobs (18, USA, World Aquatics bio here, @colin.jacobss) and Arthur Aguiar (19, Brazil, World Aquatics bio here, @arthurlaguiar._) on the last lap of the 10 km race to win the World Aquatics Junior Open Water Swimming Championships this morning in Santa Fe, Argentina.
Karpati has geared up for close races gaining experience by competing in Spain (at the Spanish Open Water Swimming Championships 5 km and the World Aquatics World Cup 3 km Knockout and 10 km, Italy (at the World Cup 3 km Knockout and 10 km), as well as in Croatia and Cyprus (at the European Cups 10 km) over the last year. Combined with his 3:53 400m and 15:25 1500m freestyle pool speed, he had enough in the tank to hold off the lead pack towards the finish.
The pace really picked up on the last lap. “It was an intense pace towards the end,” said USA team coach Chris Morgan.
The water temperature was 17.4°C so all the athletes wore wetsuits. The loop course was held in Lago Sur (South Lake) in Parque del Sur in Santa Fe, named one of the World’s Best Open Water Swimming Towns and the site of one of the World’s Top 100 Open Water Swims since 1961.


Day One of the Championships concludes with the women’s 10 km race for 18-19 year olds.
10 km 18-19 Year Men’s Results
- Mate Karpati, Hungary 1:46:46.30
- Colin Jacobs, USA 1:46:51.70
- Arthur Aguiar, Brazil 1:46:53.30
- Ethan Parker, France 1:46:54.20
- Lev Spanopulo, Russia 1:47:26.20
- Giovanni Lauricella, Italy 1:47:27.90
- Davide Grossi, Italy 1:47:45.20
- Eduardo Mustafa, Brazil 1:47:49.60
- Richard Urban, Slovakia 1:47:56.60
- Rastislav Cacik, Slovakia 1:48:20.50
- Will Siegel, USA 1:48:43.30
- Petr Moravek, Czech Republic 1:49:29.10
- Lachlan Evans, Australia 1:49:29.40
- Jun-Yan Tsao, Chinese Taipei 1:49:52.90
- Daniel Carter, Australia 1:49:57.10
- Vasileios Kakoulakis, Greece 1:50:07.30
- Krisztian Grandpierre, Hungary 1:50:46.50
- Tomas Jouglard, Argentina 1:52:26.50
- Emiliano Almanza Chavez, Mexico 1:53:10.60
- Aiden Kirk, Canada 1:53:14.30
- Santiago Bello Villaneuva, Venezuela 1:53:51.70
- Juan Sanchez Azuaje, Venezuela 1:53:55.90
- Kotaro Hyodo, Japan 1:54:27.80
- Ricardo Gutierrez, Chile 1:54:29.40
- Pavan Dhananjaya, India 1:54:40.40
- Miro Uchimura, Japan 1:55:51.80
- Jordan Mladovan, South Africa 1:56:29.70
- Ethan Stocks, New Zealand 1:57:21.80
- Kenneth Mirabal, Puerto Rico 1:57:40.60
- Ahmed Elhorany, Egypt 1:58:39.00
- Juan Garcia Santa Cruz, Mexico 1:59:35.10
- Roberto Barzallo Alverca, Ecuador 2:02:03.90
- Troy McWilliam, South Africa 2:02:36.60
- Jack Barton, New Zealand 2:02:58.90
- Santiago Castedo, Bolivia 2:03:29.40
- David Huezo, Honduras 2:04:03.80
- Alex Werner Marggraff, Namibia 2:04:30.00
- Nomar Rodriguez Reteguiz, Puerto Rico 2:05:12.00
- Marcelo Fernandez, Peru 2:06:46.20
- Matias de Olazaval, Peru OTL
- Eduardo Duron, Honduras OTL
- Sebastian Lopez, Paraguay OTL
- Tristan Timothy Nell, Namibia OTL
- Xin-Yuan Zeng, Chinese Taipei
© 2026 Daily News of Open Water Swimming
“to educate, enthuse, and entertain all those who venture beyond the shoreline“
World Open Water Swimming Federation, an exclusively human-powered project.