| Name | Country | PTO Rank | Recent Race | |
|---|---|---|---|---|
WB | William Brydon | 🇲🇹Malta | — | 29th — 2009 Malta ETU Triathlon Small States of Europe Championships |
WC | William Cannon | 🇦🇺Australia | — | 9th — 2018 IRONMAN 70.3 Augusta |
 | William Clarke | 🇬🇧Great britain | — | 17th — 2018 IRONMAN 70.3 Dubai |
WC | William Contreras | — | DNS — 2006 IRONMAN Brazil | |
WC | William Cowen | — | 30th — 2023 IRONMAN 70.3 Knokke-Heist | |
WD | William Didier | 🇧🇪Belgium | — | 57th — 2008 Otepaa CISM World Military Triathlon Championship |
WD | William Draper | 🇬🇧Great britain | — | 11th — 2025 T100 Triathlon World Tour Dubai |
| PTO #567 | 15th — 2025 Challenge Barcelona | |||
| 🇫🇷France | PTO #761 | 6th — 2025 Obernai Triathlon | ||
| 🇩🇰Denmark | — | 8th — 2025 ESP Sprint Triathlon National Championships | ||
| 🇬🇧Great britain | — | 3rd — 2025 Europe Triathlon Challenge Long Distance Championships Almere-Amsterdam | ||
| — | 12th — 2021 Florida | |||
| 🇺🇸United States | — | 12th — 2021 Florida | ||
| 🇱🇺Luxembourg | — | 12th — 2025 POL Super Sprint Triathlon National Championships | ||
| 🇺🇸United states | — | 1st — 2020 Clermont PATCO Sprint Triathlon Panamerican Cup | ||
| 🇬🇧Great britain | — | DNF — 2013 Banyoles ITU Triathlon Premium European Cup | ||
| 🇺🇸United states | — | 45th — 2016 Sarasota CAMTRI Sprint Triathlon and Mixed Relay American Championships | ||
| 🇬🇧Great britain | — | DNF — 2014 Geneva ETU Triathlon European Cup | ||
| — | DNF — 2016 IRONMAN 70.3 Xiamen | |||
| 🇮🇪Ireland | — | 17th — 2021 IRL Sprint Triathlon National Championships | ||
| 🇺🇸United states | PTO #803 | 32nd — 2025 IRONMAN 70.3 Augusta | ||
| PTO #145 | 19th — 2026 Challenge Sir Bani-Yas | |||
| 🇨🇦Canada | — | 25th — 2025 Americas Triathlon Cup Kelowna | ||
| 🇳🇿New zealand | — | 7th — 2013 Weihai ITU Long Distance Triathlon World Series Event | ||
| 🇿🇦South africa | — | DNF — 2025 Europe Triathlon Cup Alanya | ||
| 🇳🇿New zealand | — | 38th — 2012 Mooloolaba ITU Triathlon Premium Oceania Cup | ||
| 🇸🇧Solomon islands | — | 14th — 2023 Honiara Pacific Games. Triathlon | ||
| 🇳🇿New zealand | — | 9th — 2025 Asia Triathlon Cup Kota Kinabalu | ||
| 🇨🇰Cook islands | — | 3rd — 2022 COK Triathlon National Championships | ||
| 🇺🇾Uruguay | — | 7th — 2022 URU Triathlon National Championships | ||
| 🇧🇴Bolivia | — | 9th — 2016 BOL Sprint Triathlon National Championships | ||
| 🇻🇪Venezuela | — | 3rd — 2019 PAN Sprint Triathlon National Championships | ||
| 🇺🇸US | — | 18th — 2025 USA Triathlon Junior National Championships | ||
| — | 11th — 2008 IRONMAN South Africa | |||
| 🇳🇱Netherlands | — | 9th — 2013 NED Long Distance Triathlon National Championships | ||
| 🇵🇷Puerto rico | — | 48th — 2020 Playa Hermosa PATCO Sprint Triathlon Panamerican Cup and Central American&Caribbean Championshi | ||
| 🇪🇨Ecuador | — | DNF — 2009 Playas ITU Triathlon Pan-American Cup | ||
| 🇫🇯Fiji | — | 9th — 2019 Tahiti OTU Pacific Island Championships | ||
| 🇺🇸United states | — | 24th — 2019 Richmond CAMTRI Sprint Triathlon American Cup | ||
| 🇭🇳Honduras | — | 22nd — 2017 Managua Central American Games | ||
| 🇨🇴Colombia | — | 26th — 2022 World Triathlon Development Regional Cup Santa Marta | ||
| — | 16th — 2008 IRONMAN South Africa | |||
| 🇳🇱Netherlands | — | 39th — 2006 Tarzo ITU Triathlon European Cup | ||
| 🇱🇮Liechtenstein | — | 6th — 2010 Vaduz ETU Triathlon Small States of Europe Championships | ||
| 🇭🇰Hong kong | — | 16th — 2023 Asia Triathlon Cup Xiamen | ||
| 🇿🇦South africa | — | 4th — 2009 Durban ATU Triathlon African Championships | ||
| 🇸🇬Singapore | — | 13th — 2017 Taizhou ASTC Triathlon Asian Cup | ||
| 🇰🇳Saint kitts and nevis | — | 3rd — 2019 DOM Sprint Triathlon National Championships |
