Triathlons in December 2026
44 races in December 2026 (31 triathlons, 8 aquathlons and 5 duathlons) between 4 December 2026 and 26 December 2026.
For now they are basic listings: date, location and a link to the official website. We verify them one by one.
Next up: 2025-26 Aquathlon #2, on 4 December 2026 in Forster, Australia.
By distance: 1 super sprint, 4 sprint, 1 olympic, 5 middle distance and 3 long distance. Countries with most races: Australia (24), New Zealand (4) and Brazil (3).
Races
| Date | Race | Location | Sport and distance | Fee | Page |
|---|---|---|---|---|---|
| 4 Dec 2026 | 2025-26 Aquathlon #2 | Forster, New South Wales, Australia | Aquathlon · Distance pending | — | Basic |
| 4 Dec 2026 | 2025-26 Aquathlon #3 | Forster, New South Wales, Australia | Aquathlon · Distance pending | — | Basic |
| 4 Dec 2026 | 2025-26 Youth training #3 | Forster, New South Wales, Australia | Aquathlon · Distance pending | — | Basic |
| 5 Dec 2026 | Cronulla Tri Club 2026-2027 Triathlon Series: No.4 | Sutherland, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 5 Dec 2026 | Future ChampioNZ Aquathon Eliminator | Taupō, New Zealand | Aquathlon · Distance pending | — | Basic |
| 5 Dec 2026 | Future ChampioNZ Open Water Swim | Taupō, New Zealand | Triathlon · Distance pending | — | Basic |
| 5 Dec 2026 | IRONMAN Oman | Muscat, Oman | Triathlon · Long distance | — | Basic |
| 5 Dec 2026 | Splash n Dash Aquathon | Nightcliff, Northern Territory, Australia | Aquathlon · Sprint | — | Basic |
| 5 Dec 2026 | Tweed Valley Triathletes - Club Events December | Murwillumbah, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | 2026-27 Club Race 4 - Navigate Her - Womens Race | Coffs Harbour, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | 2026-27 Swim Run Race 1 | Acton, Australian Capital Territory, Australia | Aquathlon · Distance pending | — | Basic |
| 6 Dec 2026 | 2XU Triathlon Series - Race 1 | Elwood, Victoria, Australia | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | Circuito Brasileiro Duathlon Juiz de Fora | Juiz de Fora, Minas Gerais, Brazil | Duathlon · Distance pending | — | Basic |
| 6 Dec 2026 | Copa Norte Rio Branco | Rio Branco, Acre, Brazil | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | Future ChampioNZ Wharewaka Triathlon | Taupō, New Zealand | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | IRONMAN 70.3 La Quinta | La Quinta, CA, United States | Triathlon · Middle distance | — | Basic |
| 6 Dec 2026 | IRONMAN 70.3 Veracruz | Veracruz, Mexico | Triathlon · Middle distance | — | Basic |
| 6 Dec 2026 | IRONMAN 70.3 Western Australia | Busselton, WA, Australia | Triathlon · Middle distance | — | Basic |
| 6 Dec 2026 | IRONMAN Western Australia | Busselton, WA, Australia | Triathlon · Long distance | — | Basic |
| 6 Dec 2026 | Pho3nix Queensland Triathlon Series - Round 4 - Raby Bay | Cleveland, Queensland, Australia | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | WW Cross Tri Paul Cluver | Paul Cluver Wine Estate, Western Cape, South Africa | Triathlon · Distance pending | — | Basic |
| 10–12 Dec 2026 | Qatar T100 | Doha, Qatar | Triathlon · Distance pending | — | Basic |
| 11 Dec 2026 | 2025-26 Youth training #4 | Forster, New South Wales, Australia | Aquathlon · Distance pending | — | Basic |
| 11 Dec 2026 | IRONMAN 70.3 Bahrain | Manama, Bahrain | Triathlon · Middle distance | — | Basic |
| 12 Dec 2026 | Callala Triathlon - Aquabike State Championship | Callala Beach, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 12 Dec 2026 | Fodaxman Extreme Triathlon | Urubici, Brazil | Triathlon · Long distance | — | Basic |
| 12 Dec 2026 | II DUATLÓN SUPERSPRINT CIUDAD DE ARRECIFE | Arrecife, Canary Islands, Spain | Duathlon · Super sprint | — | Basic |
| 12 Dec 2026 | Tweed Valley Triathletes - Club Events December | Murwillumbah, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | City of Joondalup Coastal Quest Triathlon 2026 | Hillarys, Western Australia, Australia | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | DUATLO DE SA POBLA | Sa Pobla, Balearic Islands, Spain | Duathlon · Distance pending | — | Basic |
| 13 Dec 2026 | IRONMAN 70.3 Florida | Haines City, FL, United States | Triathlon · Middle distance | — | Basic |
| 13 Dec 2026 | JHB Ultra | Cradle Moon, Gauteng, South Africa | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | Moana Triathlon | Moana, South Australia, Australia | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | Portarlington Triathlon 2026 | Portarlington, Victoria, Australia | Triathlon · Sprint | — | Basic |
| 13 Dec 2026 | StepAhead Podiatry SuperSprint & SunSmart Kids Triathlon | Rockingham, Western Australia, Australia | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | TRIATHLON DUATHLON DE LA SAINT SYLVESTRE | Antibes, Departamento 06, France | Triathlon · Sprint | — | Basic |
| 13 Dec 2026 | Waitomo Triathlon Festival | Christchurch, New Zealand | Triathlon · Distance pending | — | Basic |
| 18 Dec 2026 | 2025-26 Youth training #5 | Forster, New South Wales, Australia | Aquathlon · Distance pending | — | Basic |
| 19 Dec 2026 | Tweed Valley Triathletes - Club Events December | Murwillumbah, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 20 Dec 2026 | 2026-2027 - Tri - #2.5 | Forster, New South Wales, Australia | Triathlon · Distance pending | — | Basic |
| 20 Dec 2026 | De Hel van Kasterlee | Kasterlee, Flanders, Belgium | Duathlon · Distance pending | — | Basic |
| 20 Dec 2026 | IV Duatló Cross de Cornellà | Cornellà de Llobregat, Catalonia, Spain | Duathlon · Sprint | — | Basic |
| 20 Dec 2026 | Super Sprint Race Weekend | Runaway Bay, Queensland, Australia | Triathlon · Olympic | — | Basic |
| 26 Dec 2026 | AUSTRALIA DAY TRIATHLON | Bicton, Western Australia, Australia | Triathlon · Distance pending | — | Basic |
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