September Triathlon Calendar
Practical Information and September Triathlon Schedule
156
Races
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Coming soon
Upcoming Triathlons in September
Triathlon+1Road Running
Fri, Sep 4 ➜ Wed, Nov 4, 2026Date confirmed
Deca Ultra Italy
Peschiera del Garda42.195 kmTriathlon XXL1,000 km1,609 km2,000 km3,000 km5,000 km5,500 km6,000 km7,000 km
Triathlon+2SwimRunTrail
11 Fri ➜ September 13, 2026Date confirmed
Triathlon SwimRun Dinard Emerald Coast
Saint-Lunaire(35)SwimRun S11 kmSwimRun MTriathlon SSwimRun LTriathlon MTriathlon L
Triathlon+1SwimRun
12 Sat ➜ September 13, 2026Date confirmed
Triathlon de Toulouse
Tournefeuille(31)SwimRun STriathlon XSTriathlon STriathlon M
Triathlon
Sat, September 12, 2026Date confirmed
Tritour Tossa de Mar
Tossa de MarSM
Should it rain or snow
September Triathlon Agenda
Get a quick overview of all the triathlons happening in September
Friday, Sep 11, 20261 race
Saturday, Sep 12, 202611 races
- Triathlon and Duathlon of the Audomarois
- Triathlon de Toulouse
- Tritour Tossa de Mar
- Urkirolak Triathlon
- Triathlon d'Évian
- Challenge Almere-Amsterdam
Almere StadTriathlon, Aquabike Triathlon & Road Running - 226 km, 117 km, 226 km, 117 km, 183.8 km, 95.9 km, 42.195 km
- Lake Aiguebelette Triathlon
- Garmin Triminator Radków
RadkówTriathlon - 113 km, 56.5 km, 28.55 km
- Ironman 70.3 Wisconsin
Madison(WI)Triathlon - 70.22 mi
- TriaLong and TriaCourt
- Triathlon Tri Nad Niesłyszem
Sunday, Sep 13, 20268 races
- Ironman 70.3 Erkner
ErknerTriathlon - 113 km
- Hyères Triathlon
- Ironman 70.3 Belgrade - Serbia
BelgradeTriathlon - 113 km
- Triathlon de Divonne-les-Bains
- City Triathlon Karlovy Vary
Karlovy VaryTriathlon - 51.5 km
- Wisconsin Ironman
- PKG Triathlon Puck
- TriaLong & TriaCourt
Saturday, Sep 19, 20268 races
- VentouxMan
- Triathlon du Lac de Paladru
- Bilbao Triathlon
- Ironman of Maryland
- Triathlon des Roses - Paris
- Triathlon Audencia La Baule
- Light on Tri Madine
- Ironman Emilia-Romagna
Mid-September 202639 races
- Balnéaman
- Triathlon Seurrois
- Triatlón isla de El Hierro
- Brenn'Triman
- Oranke Open Triathlon
- 5150 Erkner
- One2Tri
- Triathlon des Vikings
- Triatlón Sprint de Valbuena de Duero
- Triathlon des 2 Amants
- Zwickau Triathlon
- VR-Banken Schleswig-Holstein Triathlon
- The Loreto Triathlon Experience
LoretoTriathlon - 119.5 km
- Triathlon sprint citta' di chioggia
- Triathlon sprint citta' di porlezza
- Fehmarn-Triathlon
- Bad Sobernheimer Triathlon
- RatingenStadtwerke-Ratingen-Triathlon
- Tranitriathlon
- Alzenauer Triathlon
- Triathlon Sud Vendée
- Cottbuser Triathlon
- Pamina Triathlon
- Triathlon des Lions
- Ironman 70.3 Western Sydney
PenrithTriathlon - 113 km
- Ironman 70.3 Emilia-Romagna
- Triatlón Port de Palma
- Ironman 70.3 Sao Paulo
São PauloTriathlon - 113 km
- Triatlón Playas de Punta Umbría
- Ironman 70.3 Washington Tri-cities
Sunday, Sep 20, 20267 races
- Ironman 70.3 Michigan
- Ironman 70.3 Cozumel
- Granville Triathlon
- Triatlón Ciudad de Santander
- Zuma Beach Triathlon
- Ironman 70.3 Weymouth
WeymouthTriathlon - 113 km
- Grav3X
Saturday, Sep 26, 20266 races
- Ironman 70.3 New York
- Kocierz Extreme Triathlon
- Triathlon International du Lac d'Annecy
- T24 XTREME TRIATHLON - MONT-BLANC PASSY
- Naturerman Var
- Triathlon de Saint-Cirq Lapopie
Sunday, Sep 27, 20264 races
End of September 202610 races
- Isostar ExtremeMan Narbonne
- Irondelta
- Ibiza T100
- Black Canyon Triathlon
- Top Prixtel Porquerolles Triathlon (Optical Center)
- Triatlón San Roque
- Triatlón Villa de Mijas
- ELBAMAN
- Triathlon du Grand Meaulnes
- Ironman 70.3 Augusta
Early September 202759 races
- ICON Livigno Xtreme Triathlon
- Triatlón CNSO
- Adriatic Series Triathlon Sprint Città di San Mauro Mare
- Sparkassen Kanal Triathlon
- Bordeaux Triathlon
- Royan Triathlon
- Saint-Pardoux Triathlon
- Triath'Elles
- Champsaur Triathlon
- Triathlon VautourMan
- Réunion Tri Tour
Saint-LeuTriathlon, Bike and Run, Aquabike Triathlon, Duathlon & Aquathlon - 253 km, 12.9 km, 58.5 km, 57 km, 48.5 km, 223 km, 250 km, 253 km, 257 km, 1.7 km, 1.1 km, 550 m, 58.5 km
- Castle Triathlon Malbork
- Triathlon de Gérardmer
- JÁNOŠÍK Slovak Xtreme Triathlon
TerchováTriathlon - 225.8 km
- Triathlon di Lavarone Cross e Sprint
- Wataha Extreme Triathlon
- Staffel- Triathlon-des Saarlandes
- Low Triathlon
- Triatlón de Sa Ràpita
- Aquarius-(Wo)Man
- Köln Triathlon
- Triathlon de Villevêque
- IfA Nonstop Triathlon
- Le triathlon du Lac Chambon
- Triathlon Bourbon L'Archambault
- Ironman 70.3 Sunshine Coast
- AlgemarinSV3sathlon
- Triatlón Ciudad de San Fernando
- High Tech Triathlon
- Iron Dragon Triathlon
Knocke-HeistThese nice race spots should get your attention
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Made in France, between Lyon and Nantes