Drac suspension footbridge above Lake Monteynard-AvignonetJohannes Reimer · CC BY 4.0 · adapted imageDrac suspension bridge across a wooded inlet of Lake MonteynardZairon · CC BY 4.0 · adapted image
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Route reference
Prepare the La Grande Course — Relais 3 route
The La Grande Course — Relais 3 2026 page brings together published data for this running route.
The route is listed from Les Signaraux, Isère, France to Treffort, Isère, France, with 27.4 km and 1,022 m D+ on the page.
Listed organiser: Idée-Alpe.
Start / area
Les Signaraux, Isère, France
Finish
Treffort, Isère, France
Edition
2026
Distance
27.4 km
Elevation gain
1,022 m D+
GPX track and calculated values
Calculated values for this track: 27.3 km of distance calculated from the GPX track · 1,000 m ascent calculated from GPX elevations.
These track measurements remain separate from the organiser's figures and depend on the GPX version and sampling.
Source-page value: 27 km; distance calculated from the GPX: 27.3 km.
Source-page value: 1,000 m ascent; ascent calculated from GPX elevations: 1,000 m.
Documented checkpoints and aid stations
Aid stations or life bases: 4 · listed water points: 4 · checkpoints: 0.
Chalet de l’Alpage du Sénépi · km 11
Mayres-Savel village · km 16
Villarnet · km 21
Passerelle de l’Ébron · km 23
Sources reviewed
Official sources: 5 · sources with a recorded review date: 5. Updates from the organiser always take precedence.
Latest recorded check: 25 September 2026.
Frequently asked questions
Is the La Grande Course — Relais 3 GPX available?
Yes. The track and its profile can be viewed here, and the file is available as a free download from this page.
Do these details replace the organiser's instructions?
No. This page makes sources easier to consult and separates published data from GPX calculations. Check the latest official instructions before the start.
2026 card enriched from organizer sources. Official figures remain separate from metrics calculated from the GPX.
Race-day instructions
Runner 3: Les Signaraux to Treffort; advertised 27 km and 1,000 m ascent.
Aid at Signaraux, Alpage, Mayres-Savel, water at Villarnet, Ébron and finish; closes at 15:30.
Team bib collection follows La Grande Course Relay time slots.
No shuttle to Les Signaraux; the team arranges transport for runner 3.
Official leg of the three-runner relay; no separate individual entry; each leg is announced as UTMB Qualifier 20 km.
Personal cup mandatory; no cups are supplied. Outside assistance is limited to authorized zones; no post-race meal is included, but finish aid and a recovery area are announced.
Published mandatory equipment
Reusable personal cup
1.5 L water reserve
Food reserve
Emergency blanket
Whistle
Windproof jacket
Charged mobile phone
Headlamp
Head covering (cap, buff, etc.)
Checks before the start
Recheck the race page, cutoffs and weather bulletin before the start.
Prepare bib, ID, personal cup and mandatory equipment.
Never substitute the GPX for course markings and volunteer instructions.
Differences and information still uncertain
These items are shown explicitly so an approximation is never presented as official data.
Organizer distance and elevation figures are indicative; the regulations state that some private or hazardous sections may be absent from the public GPX. Race-day markings always take precedence.
This runner’s actual start time depends on the teammate’s arrival; no separate fixed time is published.
Check the information
Sources and provenance
These links point to the documents used. The organiser's instructions remain authoritative if they change.
Page officielle La Grande Course — Relais 3 2026Official
