| Name | Country | PTO Rank | Recent Race | |
|---|---|---|---|---|
UT | Udo Tschirschwitz | — | 12th — 2016 Challenge Regensburg | |
UB | Ueli Bieler | — | 14th — 2012 Switzerland | |
UR | Ugarte Ramos Mikel | 🇪🇸Spain | — | 9th — 2023 Cozumel |
UP | Ugne Pauryte | 🇱🇹Lithuania | — | 2nd — 2023 LTU Triathlon National Championships |
UD | Ul Densa | 🇸🇮SI | PTO #729 | 17th — 2025 Challenge Barcelona |
 | Ula Sijaviciute | 🇱🇹Lithuania | — | — |
UB | Uli Bromme | — | 7th — 2019 IRONMAN 70.3 Astana | |
| 🇩🇪Germany | — | — | ||
| 🇦🇷Argentina | — | 14th — 2022 World Triathlon Development Regional Cup Durazno | ||
| — | 10th — 2012 IRONMAN Copenhagen | |||
| — | DNF — 2002 IRONMAN Frankfurt | |||
| — | 16th — 2012 IRONMAN Nice | |||
| — | DNF — 2017 Challenge Finland | |||
| 🇦🇹Austria | — | — | ||
| 🇲🇴Macau | — | 3rd — 2016 ITA Sprint Triathlon National Championships | ||
| — | 38th — 2024 Zarauzko Triathlon | |||
| — | 42nd — 2024 Zarauzko Triathlon | |||
| 🇱🇹Lithuania | — | 1st — 2023 LTU Triathlon National Championships | ||
| 🇮🇹Italy | — | — | ||
| — | 15th — 2024 VI Half Gasteiz | |||
| 🇼🇸Samoa | — | 6th — 2023 Honiara Pacific Games. Triathlon | ||
| — | 27th — 2019 Cozumel | |||
| 🇨🇭Switzerland | — | 27th — 2019 Cozumel | ||
| 🇩🇪Germany | — | — | ||
| — | 10th — 2008 Challenge Roth | |||
| 🇦🇹Austria | — | — | ||
| — | 6th — 2013 Lanzarote | |||
| — | 13th — 2010 IRONMAN Switzerland | |||
| — | 25th — 2013 IRONMAN | |||
| 🇪🇸Spain | — | — | ||
| — | 6th — 2016 Challenge Gran Canaria | |||
| — | DNF — 2020 IRONMAN 70.3 Elsinore | |||
| 🇲🇽Mexico | — | 4th — 2025 Americas Triathlon Cup Manta |