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Cover photo of MaXi-Race - Demi-tour du lac 2027 — 58 km, 3588 m elevation gain

MaXi-Race - Demi-tour du lac 2027

May 30, 2027
Distance
57.7 km
Elevation gain
3588 m
Country
🇫🇷 France
Download the GPXVersion from October 5, 2026, updated by RAVITOfficial race website
Course weather at your time of passage

The forecast arrives five days before the start.

Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 7 aid stations to plan your nutrition and hydration segment by segment.

What's your time based on your UTMB?

Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.

Predicted race time based on your UTMB Index® · field profile (Riegel k=1.11)

UTMB Index®587
Normal day
3005007009001000UTMB Index®

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Cut-off times and crew - MaXi-Race - Demi-tour du lac · 2027

58 km race checkpoints: kilometers, elevation, crew, cut-off time and access
Aid stationCum. kmCum. D+Seg. kmSeg. D+Seg. D-CrewCut-offAccess
Point d'eau13.6831 m13.6831 m626 mForbiddenSun 10:45 AM
Point d'eau21.61,647 m8.0816 m705 mForbiddenSun 12:45 PM
Forêt, bas de la station du Semnoz côté Bauges30.62,510 m9.0863 m238 mForbidden—
Base vie Semnoz36.72,809 m6.1299 m223 mAllowedSun 03:55 PM
Bascule43.12,897 m6.488 m445 mForbidden—
Point d'eau (parcours entier)46.02,926 m2.929 m484 mForbiddenSun 05:00 PM
Forêt51.13,488 m5.1562 m282 mForbiddenSun 06:25 PM
Arrivée, MaXi-Village (Annecy)57.73,588 m6.6100 m592 m—Sun 07:25 PM
Updated on 10/05/2026 by RAVIT

Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.

What you'll find at each aid station

Aid station contents: products in rows, aid stations in columns
ProductPoint d'eaukm 13.6Point d'eaukm 21.6Forêt, bas de la station du Semnoz côté Baugeskm 30.6Base vie Semnozkm 36.7Point d'eau (parcours entier)km 46.0Forêtkm 51.1Arrivée, MaXi-Village (Annecy)km 57.7
Water✕✕✕✕✕✕✕
Hot mealunavailableunavailableunavailable✕unavailableunavailable✕
Updated on 10/05/2026 by RAVIT

Elevation profile

500 M750 M1000 M1250 M1500 MS01 · Point d'eau KM 13.6 — Alt 690 m D+ cumulé 831 m13.6 KMPoint d'eauS02 · Point d'eau KM 21.6 — Alt 738 m D+ cumulé 1647 m21.6 KMPoint d'eauS03 · Forêt, bas de la station du Semnoz côté Bauges KM 30.6 — Alt 1455 m D+ cumulé 2510 m30.6 KMForêt, bas de la stat…S04 · Base vie Semnoz KM 36.7 — Alt 1490 m D+ cumulé 2809 m36.7 KMBase vie SemnozS05 · Bascule KM 43.1 — Alt 1160 m D+ cumulé 2897 m43.1 KMBasculeS06 · Point d'eau (parcours entier) KM 46.0 — Alt 697 m D+ cumulé 2926 m46.0 KMPoint d'eau (parcours…S07 · Forêt KM 51.1 — Alt 947 m D+ cumulé 3488 m51.1 KMForêtStart0 KMFinish57.7 KM

The course and its aid stations

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GPX
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MaXi-Race - Demi-tour du lac: times, aid-station stops and fuelling needs by UTMB® Index

Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 9h17 to 5h50, and the aid-station stop budget from 0h24 to 0h08. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.

Below a UTMB® Index of roughly 400, the overall cut-off of 11h25 is no longer reachable at the estimated pace.

0h000h170h350h521h093005007009001000UTMB® Index
Estimated time, stop time and fuelling needs on MaXi-Race - Demi-tour du lac by UTMB Index
UTMB® IndexEstimated timeOf which stopsNight hoursCarbsFluidSodiumCut-off margin
5009h170h24—557 g6.5 L4,641 mg+2h08
5508h280h20—508 g5.9 L4,236 mg+2h57
6007h540h16—474 g5.5 L3,949 mg+3h31
6507h210h14—441 g5.1 L3,673 mg+4h04
7006h470h11—407 g4.7 L3,389 mg+4h38
7506h210h10—381 g4.4 L3,177 mg+5h04
8005h500h08—350 g4.1 L2,916 mg+5h35

Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.

Measured on the 2026 edition: the field checkpoint by checkpoint

1,245 finishers measured over 10 timed checkpoints.

Duration of each segment on edition 2026: median and middle half of field
SegmentkmMedianMiddle halfMeasuredMedian passageStill ranked
Départ → KM 1813.41 h 431 h 33 – 1 h 521,2361 h 431,245
KM 18 → KM 2121.21 h 381 h 26 – 1 h 481,2053 h 211,245
KM 21 → KM 28281 h 0659 min – 1 h 121,2114 h 271,245
KM 28 → KM 3434.81 h 301 h 21 – 1 h 381,2315 h 571,245
KM 34 → Entrée Base Vie Semnoz36.18 min7 min – 9 min1,2296 h 061,245
Entrée Base Vie Semnoz → Sortie Base Vie Semnoz36.411 min7 min – 15 min1,2386 h 191,245
Sortie Base Vie Semnoz → Reste 12km45.11 h 0458 min – 1 h 101,1167 h 181,245
Reste 12km → Reste 6,5km501 h 101 h 03 – 1 h 181,1178 h 371,245
Reste 6,5km → Reste 500m5650 min45 min – 57 min1,2399 h 271,245
Reste 500m → Arrivée56.63 min3 min – 4 min1,2409 h 301,245

“Median passage” is elapsed time from the start, not a clock time: the clock time depends on the edition.

RAVIT record from the official timing of the 2026 edition, data from October 5, 2026.

See segment-by-segment analysis of MaXi-Race - Demi-tour du lac

Other trails worth preparing for

MaXi-Race - Demi-tour du lac over the years

MaXi-Race - Demi-tour du lac 2026

Sources and method

  • Time projection — les temps par cote sont repris des passages réels des coureurs de chaque tranche sur les éditions précédentes de cette course, arrêts aux ravitaillements compris. Aucune formule n'intervient tant que ces résultats existent.
  • Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
  • Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — MaXi-Race - Demi-tour du lac

Weather for MaXi-Race - Demi-tour du lac

The weather for MaXi-Race - Demi-tour du lac will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.

Detailed weather for MaXi-Race - Demi-tour du lac, hour by hour on the course

Frequently asked questions

How many checkpoints?

MaXi-Race - Demi-tour du lac has 8 checkpoints: 2 aid stations, 5 water points, and 1 checkpoint without aid station (Bascule, km 43.1). Details are in the two tables above.

What's the longest segment without aid?

The one leading to Point d'eau: 13.6 km and 831 m elevation gain. That's the one to load up for first.

How do I find the exact location of an aid station?

The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.

What distance and elevation gain?

MaXi-Race - Demi-tour du lac is 58 km long with 3588 m of elevation gain.

How long to finish?

With a UTMB Index of 600 (average runner), the estimated time is around 7h54 for MaXi-Race - Demi-tour du lac.

What's the weather forecast?

The weather for MaXi-Race - Demi-tour du lac will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.

Want to stack the odds in your favor for MaXi-Race - Demi-tour du lac?

In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.

No card required · Instant results