Courses · IRONMAN 70.3 · Versailles, France
87.6 km measured along the road and 565 m of climbing read off the ground, in 6 climbs.
Predict your time on this courseYour weight, your watts for each kind of slope, your position. Nothing to upload.
A model, not a measurement. What it can show depends on the numbers above — what you typed, and what your files recorded — and on assumptions this page states; anything it cannot stand behind says so rather than drawing a tidier line.
Each piece named by what the ground is: the climbs, the flats and the descents.
| Piece of road | Length | Slope | Rise |
|---|---|---|---|
| Flat, 2.6 km from km 0.0 | 2.6 km | 0.6% | 15 m |
| Climb, 1.1 km at 4.4% from km 2.6 | 1.1 km | 4.4% | 48 m |
| Flat, 11.8 km from km 3.7 | 11.8 km | — | — |
| Descent, 1.2 km at 5.1% from km 15.5 | 1.2 km | -5.1% | — |
| Flat, 1.8 km from km 16.6 | 1.8 km | — | 2 m |
| Climb, 3.1 km at 2.0% from km 18.4 | 3.1 km | 2.0% | 62 m |
| Flat, 14.2 km from km 21.5 | 14.2 km | — | 19 m |
| Descent, 1.7 km at 3.5% from km 35.8 | 1.7 km | -3.5% | — |
| Flat, 1.2 km from km 37.5 | 1.2 km | — | — |
| Climb, 1.0 km at 3.1% from km 38.7 | 1.0 km | 3.1% | 31 m |
| Flat, 20.4 km from km 39.7 | 20.4 km | — | — |
| Climb, 1.5 km at 4.4% from km 60.1 | 1.5 km | 4.4% | 67 m |
| Flat, 6.4 km from km 61.6 | 6.4 km | — | — |
| Descent, 1.9 km at 3.8% from km 68.1 | 1.9 km | -3.8% | — |
| Climb, 1.3 km at 5.4% from km 70.0 | 1.3 km | 5.4% | 71 m |
| Flat, 3.9 km from km 71.3 | 3.9 km | -1.4% | — |
| Climb, 1.2 km at 3.9% from km 75.2 | 1.2 km | 3.9% | 49 m |
| Flat, 11.2 km from km 76.4 | 11.2 km | — | — |
Predict your time on this courseThis page describes the road. How long it takes depends on who rides it.
How the road was measured
The length is measured along the mapped roads (OpenStreetMap), which 99% of the route followed, rather than along a GPS trace, which is longer or shorter than the road by however far its receiver wandered. The course file itself said 87.7 km, and a head unit measuring its own trace will read something close to that.
The climbing is read off a terrain model of the ground, averaged along the road, rather than off a barometer, which cannot tell a change in the weather from a hill. The file's own altimeter said 793 m, near enough the same road.
The course as described from the course IRONMAN published for 2026. watts & time is not connected with the event or its organisers; a course changes from year to year, so check the current one before you plan on it.
87.6 km with 565 m of climbing, in 6 climbs. The distance is measured along the mapped roads (OpenStreetMap) rather than a GPS trace, and the climbing is read off a terrain model of the ground rather than a barometer, which drifts with the weather, so a head unit will often show slightly different figures.
In the order you meet them: Climb, 1.1 km at 4.4% from km 2.6; Climb, 3.1 km at 2.0% from km 18.4; Climb, 1.0 km at 3.1% from km 38.7; Climb, 1.5 km at 4.4% from km 60.1; Climb, 1.3 km at 5.4% from km 70; Climb, 1.2 km at 3.9% from km 75.2.
That depends on you, so the page does not guess: open the course in the predictor. Set your weight, the power you will hold on each kind of slope and the position you will ride in, and it answers with the time and the band around it, climb by climb. Nothing to upload: the course is already there.