Build your Coeur d'Alene 70.3 plan
Your coach opens with the Coeur d'Alene 70.3 set for June 27, 2027, asks about your week and your fitness, then writes every session of your 70.3 triathlon plan. Free, and you can start as a guest. About 35 weeks to go.
Start your Coeur d'Alene 70.3 plan- Formats
- 70.3
- Terrain
- Hilly
- Taper starts
- June 15, 2027
Coeur d'Alene 70.3 distances
- 70.3 1.2 mi swim, 56 mi bike, 13.1 mi run
Course
The Coeur d'Alene 70.3 course
The 1.2-mile swim is a counter-clockwise loop in Lake Coeur d'Alene, heading south and back north to a single central transition at Coeur d'Alene City Park. The 56-mile bike rides around the north and west sides of the lake on wide roads with big views, and IRONMAN rates it hilly: expect real climbing through challenging Idaho terrain.
Read the full course notes
Your crew can catch you three times at the hot corner by transition before you head out on the run. The 13.1-mile run is two loops through historic neighborhoods and along the lakefront, with lively spectators and sometimes live bands, and your final strides run downhill to an award-winning finish in downtown Coeur d'Alene.
- Terrain
- Hilly
- Formats
- 70.3
- Race-day conditions
- Late June in Coeur d'Alene is usually mild: IRONMAN lists typical lows of about 55 °F and highs of 67 °F, with highs of 63 to 72 °F in 2024–2026. The lake averages about 68 °F (64 °F in 2024), comfortably wetsuit legal under the 76.1 °F cutoff, and it can feel cold at the start. A cool morning can turn into a warm, sunny run, so carry enough fluid.
What to train for
The hilly bike defines this race, so build climbing strength: ride hilly routes of 2.5 to 3.5 hours with repeated 5 to 10 minute climbs at steady half-iron power, and practice descending smoothly.
Cap your effort on the climbs so you still have legs for the two-loop run.
Add weekly bricks and some cool open-water swims in a wetsuit so a brisk lake start feels routine.
Sample week
A sample Coeur d'Alene 70.3 training week
A week from the middle of the build, about six weeks out. Your plan sets the real distances and paces from your own fitness and adjusts them every week as you train.
- Monday
- Swim, 1 h: drills and technique
- Tuesday Key session
- Bike, 1 h 15 min with climbing repeats
- Wednesday
- Swim, 1 h: steady intervals at race effort
- Easy run, 50 min
- Thursday Key session
- Run, 50 min with tempo segments
- Friday
- Rest, or 20 minutes of mobility
- Saturday Key session
- Long ride, 3 h, then a 30 min run off the bike
- Sunday
- Long run, 1 h 30 min easy
Your build to race day
Taper
Tapering for the Coeur d'Alene 70.3
Start the taper ten to fourteen days before race day. Trim the volume in all three sports, keep short race-pace efforts in each, and do one last short brick so running off the bike still feels familiar. The course is hilly, so keep one short hill session in the first taper week to keep the climbs familiar. With the race on June 27, 2027, your taper starts around June 15, 2027.
Also in Claude
Ask Claude for this plan
Add AthleteSpace to Claude once, then paste this prompt and put in your own numbers.
Build me a 70.3 triathlon season for the IRONMAN 70.3 Coeur d'Alene on June 27, 2027. I train about [hours] hours a week, [days] days a week.
Coeur d'Alene 70.3 training questions
How long should I train for the Coeur d'Alene 70.3?
Most athletes give a 70.3 triathlon sixteen to twenty weeks of focused training on top of an existing base. The coach counts back from your actual race date, so if you have less time than that it builds the best plan the remaining weeks allow rather than pretending you have longer.
What is the Coeur d'Alene 70.3 course like?
Hilly. The 1.2-mile swim is a counter-clockwise loop in Lake Coeur d'Alene, heading south and back north to a single central transition at Coeur d'Alene City Park.
How cold is the water at the Coeur d'Alene 70.3?
Late June in Coeur d'Alene is usually mild: IRONMAN lists typical lows of about 55 °F and highs of 67 °F, with highs of 63 to 72 °F in 2024–2026. The lake averages about 68 °F (64 °F in 2024), comfortably wetsuit legal under the 76.1 °F cutoff, and it can feel cold at the start. A cool morning can turn into a warm, sunny run, so carry enough fluid.
When should I start tapering for the Coeur d'Alene 70.3?
Start the taper ten to fourteen days before race day. Trim the volume in all three sports, keep short race-pace efforts in each, and do one last short brick so running off the bike still feels familiar. The course is hilly, so keep one short hill session in the first taper week to keep the climbs familiar. With the race on June 27, 2027, your taper starts around June 15, 2027.
Do I need an account to get a Coeur d'Alene 70.3 training plan?
Start as a guest and save a free account later. Your coach writes your 70.3 triathlon plan and adapts it every week as you log your training. No card.