Ironman 70.3 Coeur d'Alene

JUN
21
2026
Experience an iconic triathlon in Idaho featuring an award winning lake swim and a scenic bike course through rolling hills. This event offers a walkable transition area and serves as a World Championship qualifier.
Sun 21 Jun 2026
1.2-Mile Swim 13.1-Mile Run 56-Mile Bike

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IRONMAN 70.3 Coeur d'Alene

The IRONMAN 70.3 Coeur d’Alene is a triathlon event held in Coeur d'Alene, Idaho. The race features a transition area centrally located within the walkable town, providing access to local accommodations and dining. The event consists of the following disciplines:

  • 1.2 mile swim
  • 56 mile bike
  • 13.1 mile run

The swimming portion takes place in Lake Coeur d’Alene, which has an average water temperature of 68 °F (20 °C). The bike course leads participants through rolling hills and Idaho terrain with views of the lake. The run follows a rolling path along the lakefront, passing historic homes, and concludes with a downhill section toward the finish line.

This event serves as a qualifier for the 2026 IRONMAN 70.3 World Championship. Historically, the swim course at this location has received high ratings in athlete surveys, including being ranked as a top swim course globally. Local amenities in the host city include various recreation, shopping, and dining options. An IRONKIDS event is also associated with the race weekend. Average air temperatures for the area during this period typically range from a low of 46 °F (8 °C) to a high of 69 °F (21 °C). Visit the organization's website for the most recent information.

13 mi
13.1-Mile Run
1.2-Mile Swim
56-Mile Bike