Triathlons in December 2026
66 races in December 2026 (43 triathlons, 12 aquathlons and 11 duathlons) between 4 December 2026 and 27 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, 6 sprint, 1 olympic, 7 middle distance and 3 long distance. Countries with most races: Australia (26), Brazil (9) and New Zealand (6).
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 |
| 4 Dec 2026 | טריאתלון ישרוטל ספורט קלאב אילת 2026, אליפות ישראל ה-38 | אילת, Israel | Triathlon · 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 | 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 | Aquathlon Kuala Langat | Kuala Langat, Selangor, Malaysia | Aquathlon · 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 INTERIOR São Pedro | São Pedro, São Paulo, Brazil | Triathlon · Distance pending | — | Basic |
| 6 Dec 2026 | COPA INTERIOR São Pedro – Aquathlon | São Pedro, São Paulo, Brazil | Aquathlon · Distance pending | — | Basic |
| 6 Dec 2026 | COPA INTERIOR São Pedro – Duathlon | São Pedro, São Paulo, 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 | Triatlón 113K Xtremo San Carlos | San Carlos, Sonora, Mexico | Triathlon · Middle distance | — | Basic |
| 6 Dec 2026 | Triatlón Puerto del Rosario | Puerto del Rosario, Canary Islands, Spain | 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 | Dorney Lake Duathlon | Dorney, United Kingdom | Duathlon · 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 | Aquathlon Indoor Vittel | Vittel, France | Aquathlon · 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 | HALF ISS Triathlon Mar del Plata 2026 | Mar del Plata, Buenos Aires, Argentina | Triathlon · Middle distance | — | 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 | Kaiserstuhl Cross-Duathlon | Vogtsburg Achkarren, Baden-Württemberg, Germany | Duathlon · Distance pending | — | Basic |
| 13 Dec 2026 | Kalgoorlie Club Race 3 26-27 Season | Goldfields Oasis, Australia | 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 | Sherwood Pines Festive Duathlons | Edwinstowe, United Kingdom | Duathlon · Distance pending | — | Basic |
| 13 Dec 2026 | StepAhead Podiatry SuperSprint & SunSmart Kids Triathlon | Rockingham, Western Australia, Australia | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | SUPER ACTION Holambra | Holambra, São Paulo, Brazil | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | SUPER ACTION Holambra – Aquathlon | Holambra, São Paulo, Brazil | Aquathlon · Sprint | — | Basic |
| 13 Dec 2026 | SUPER ACTION Holambra – Duathlon | Holambra, São Paulo, Brazil | Duathlon · Sprint | — | Basic |
| 13 Dec 2026 | TRIATHLON DUATHLON DE LA SAINT SYLVESTRE | Antibes, Departamento 06, France | Triathlon · Sprint | — | Basic |
| 13 Dec 2026 | Triathlon Hawkes Bay Summer Series | Napier, Hawke's Bay Region, New Zealand | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | Triathlon indoor de Belgique | Schaerbeek, Belgium | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | TriSeries Frutillar 2026 | Frutillar, Chile | Triathlon · Distance pending | — | Basic |
| 13 Dec 2026 | Waitomo Triathlon Festival | Christchurch, New Zealand | Triathlon · Distance pending | — | Basic |
| 14 Dec 2026 | TST Summer Series | Taupō, Waikato Region, 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 | Campeonato de Asturias de Duatlón Cross Navidad | Lugones, Asturias, Spain | Duathlon · Distance pending | — | Basic |
| 20 Dec 2026 | De Hel van Kasterlee | Kasterlee, Flanders, Belgium | Duathlon · Distance pending | — | Basic |
| 20 Dec 2026 | Hills Triathlon Club | Penrith, New South Wales, Australia | Triathlon · 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 |
| 27 Dec 2026 | Eves Surfbreaker Triathlon | Pilot Bay Beach, Bay of Plenty, New Zealand | Triathlon · Distance pending | — | Basic |
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