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Le Marathon Vert Rennes Groupe Interaction
At a glance
- Race day
- The 2026 race
- Next race
- Date not out yet
- Last run Sun 18 Oct
- Start
- 09:009:00 AM
- Distance
- 42.2 km26.2 mi
- Marathon · 10K · 5K · miles, from the race name, not from a published programme
The course
The marathon starts on the Mail François Mitterrand, runs two loops of an all-urban course through Rennes, and finishes on the Esplanade Charles de Gaulle.
- Two loops from the Mail François Mitterrand to the Esplanade Charles de GaulleStart on the Mail François Mitterrand, two urban loops, finish on the Esplanade Charles de Gaulle.
- +110 m in the organiser's figure, a fast course+110 m of climbing, the organiser's figure, and a course it calls the flattest in France.
- Gold label, Breton championship and pacers from 2:20 to 4:30FFA Gold label, Brittany championship, pacers from 2:20 to 4:30.
Course notes 3 short reads on the course
km 0 to 42.2GeometryTwo loops from the Mail François Mitterrand to the Esplanade Charles de GaulleStart on the Mail François Mitterrand, two urban loops, finish on the Esplanade Charles de Gaulle.
The organiser describes a 100% urban course of two loops, with the start on the Mail François Mitterrand and the finish on the Esplanade Charles de Gaulle. The start is a 7-minute walk from République on metro line A or 6 minutes from Mabilais on line B; the finish is at Charles de Gaulle station on line A.
Sourced
Whole courseGradient+110 m in the organiser's figure, a fast course+110 m of climbing, the organiser's figure, and a course it calls the flattest in France.
The marathon page lists “+110m de dénivelé cumulé” and calls the course “très roulant”. The courses page says that in 2024 it became “le Marathon avec le parcours le plus roulant de France en pourcentage”, and that 10% of finishers ran under 3:00 and 65% under 4:00.
Sourced
Whole courseTacticsGold label, Breton championship and pacers from 2:20 to 4:30FFA Gold label, Brittany championship, pacers from 2:20 to 4:30.
The marathon page says the course is “mesurée et homologuée label Or international FFA” and supports the Championnat de Bretagne. Volunteer pacers run the marathon at 2:20, 2:30, 2:35, 2:40, 2:45, 2:50, 3:00, 3:15, 3:30, 3:45, 4:00, 4:15 and 4:30, and the organiser says they pace by running time, not by the gun clock. Runners must be born in 2007 or earlier and hold a PPS or an FFA licence. The 2026 marathon sold out.
Sourced
Race weekend
Bib pickup at Esplanade Charles de GaulleFriday 16 October Bib pickup
-
13:301:30 PM–19:007:00 PM
Race village and bib pick-up Esplanade Charles de Gaulle. Friday opening of the Marathon Village.
Saturday 17 October Last bib day
-
10:0010:00 AM–19:307:30 PM
Race village and bib pick-up Esplanade Charles de Gaulle. Saturday opening of the Marathon Village.
Other races and side events (3)
-
20:008:00 PM
Féminine Yves Rocher 5 km start Mail François Mitterrand. The 5 km family walk starts at the same time. -
21:159:15 PM
Mile Battle by TRC start Boulevard de la Liberté / Place de Bretagne. Evening mile race. -
21:309:30 PM
10 km Lamotte start Mail François Mitterrand. Night 10 km on the Saturday.
Bib in hand?A number belt holds it without pins through your race top. Clip it on tonight.
Number belt on AmazonAmazon partner link
Sunday 18 October Race day
-
07:457:45 AM
Bag drop opens at the start Mail François Mitterrand. Bags are collected at the finish on the Esplanade Charles de Gaulle. -
09:009:00 AM
Marathon start Mail François Mitterrand. The Duo Bati-Armor and the Ouest-France relay start at the same time. Finish on the Esplanade Charles de Gaulle. -
11:3011:30 AM
Podiums begin Esplanade Charles de Gaulle. Marathon, Duo Bati-Armor and relay podiums.
Times as published by the organiser, in Rennes time, checked . Confirm on their site before you travel.
The forecast for Sunday
Race morning, on the record
Add to calendar .ics file, times in Rennes time
Entry
Race fuel
Energy gel
5 gels for Rennes, plus 1 spare
Finish
One every 40 minutes, by the clock:
Under about 75 minutes most runners need no gel: water at the aid stations does it.
- km 7mile 4.4
- km 14.1mile 8.7
- km 21.1mile 13.1
- km 28.1mile 17.5
- km 35.2mile 21.8
For your long training runs:
Our pick: SiS BETA Fuel gel, box of 6, strawberry and lime. 40 g of carbohydrate a gel, about twice a usual gel, from two kinds of sugar your body takes up side by side. Enough for race day and two test long runs.
Easy to forget on race morning: pack them with your bib the night before.
Only the gel you trained with. Nothing new on race day.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
In Canada the button opens GU Energy Gel, Salted Caramel, 24-pack, the best seller there.
Outside the Netherlands, Belgium, Germany, Austria and Switzerland, the UK and Ireland, Spain and Portugal, Italy, the rest of the EU and Canada the button opens GU Energy Gel, Chocolate Outrage, 24-pack on Amazon.com, the best seller there.
Anti-chafe
Compeed anti-blister stick, 8 ml
An invisible layer before the start keeps seams, straps and shoes from rubbing skin raw.
Put it on before you leave for the start: heels and toes, inner thighs, under a bra or heart-rate strap.
Try it on a long run first, like everything you use on race day.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Number belt
Compressport Race Belt
Holds your bib without safety pins through your top, with loops for up to 8 gels.
Clip the bib on the night before, so it goes on with your shorts in the morning.
Keep the number on the front, where officials and photographers can see it.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Electrolytes
SiS Hydro electrolyte tablets, tube of 20
One tablet in a bottle puts back some of the salt you sweat out.
One tablet in 500 ml of water in the hour before the start.
Only if you have used them in training: nothing new on race day.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Blister plasters
Compeed blister plasters, medium, 6
One in a pocket cushions a blister if one starts.
Put it on clean, dry skin and leave it until it comes off by itself.
Give a couple to whoever comes to cheer, so they are there at the km you need them.
Get it on Amazon
We earn a small fee if you buy through these links. The price is the same.
Keep exploring
More races to look at after the Le Marathon Vert Rennes Groupe Interaction.
