Running

Reims Champagne Run: Course, Route Profile & Map

The Semi des Rois is the Reims half marathon and has been run since 1984: a city loop with 68 metres of climbing over 21 kilometres, three quarters of it level, finishing at the Roman Porte de Mars. For the Champagne region it is the personal-best opportunity of the year.

DateOctober 11, 2026
LocationReims, France
Distance21.1 km
Elevation Gain+68m
Distance21.1 km
Elevation Gain+68m
ClassificationFlat
Route ShapeLoop

Course & Elevation

The gun goes at eight on Sunday morning in the centre of Reims, at around 91 metres. The course is a loop: it eases down to 82 metres by kilometre 7, climbs back to 94 by kilometre 9, then falls slowly across the second half to 79 metres before rising again to the Porte de Mars over the last two kilometres.

There is no more profile than that: 68 metres of ascent against 71 of descent, the whole course between 78 and 100 metres, 76.5 percent of it level and not one rise the profile registers as a climb. What passes for undulation are transitions of eight to twelve metres.

The race has been run since 1984 and is the weekend's headline distance: over 6,000 runners start, with an entry cap of 11,000 across the road races. The finish is at the Porte de Mars, the Roman triumphal arch in the city centre. In total the Reims Champagne Run gathers over 10,000 participants and more than 500 volunteers across eight formats over two days.

Pacing Strategy

On a course with no climbs, your opening pace is the only variable you genuinely control. The first seven kilometres tilt gently downhill, and in a field of over 6,000 that feels faster than it should. Run them deliberately two or three seconds a kilometre above target.

The race turns on the short counter-rise between kilometre 7 and 9. Twelve metres is objectively nothing, but it arrives exactly where an over-ambitious start first shows. Hold your effort steady there and use the long, gently falling second half to find your rhythm again.

The trap is the finish. From kilometre 19 the road climbs some ten metres to the Porte de Mars – on a flat half marathon that is the moment a fast opening ten kilometres comes due. Plan the run-in as a section of its own and deliberately keep something for it.

Training plan for Reims Champagne Run: 12-week build

Expect 1:15 to 2:15. The demand is a fast, entirely even half marathon: aerobic, without anaerobic spikes, without a strength component and without anything technical. That is exactly why it is decided by the ability to hold a pace with no help from the terrain.

Training emphasises threshold work: long tempo runs of 12 to 16 kilometres at goal pace and blocks of two or three times 15 minutes just under threshold. Because the course is entirely urban and paved, those sessions belong on flat tarmac rather than off-road.

The decisive ability is holding pace across the second half. Rehearse it with progression runs that get evenly faster later on, and finish at least two long sessions with a gentle rise that models the final kilometre to the Porte de Mars.

On conditions: mid-October in Champagne means cool mornings and frequent damp, with an eight o'clock start. Do key sessions early in the morning, test clothing for a cool start and a warmer finish, and rehearse fuelling for under two and a half hours.

Course Map

Höhenprofil / Elevation Profile
Hover über Grafik für Details
59m 98m 136m 0 km 5.3 km 10.5 km 15.8 km 21.1 km

Profile Parameters

Ascent+68m
Descent-71m
Vert/km3.2 m/km
Remaining Ascent0m
Highest Point96m

Slope Distribution

Flat (<2%): 76.5%
Moderate Up (2-6%): 11.9%
Moderate Down (2-6%): 11.6%
Steep Up (>6%): 0%
Steep Down (>6%): 0%

Course as GPX

Download the Le Semi des Rois course as a GPX file for your watch or bike computer.

Adaptive race preparation

Let YOUB adapt your plan for Reims Champagne Run dynamically

Ben connects your goal, the course, current load, recovery, and calendar. Your plan stays pointed at race day even when real life is not perfectly plannable.

Frequently asked questions

How long is Reims Champagne Run?

Reims Champagne Run is 21.1 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.

How much elevation gain does Reims Champagne Run have?

Reims Champagne Run has around 68 m of elevation gain over 21.1 km. That affects pacing, muscular load, and preparation for late-race sections.

What is the route profile of Reims Champagne Run?

Reims Champagne Run is classified as Flat, averaging 3.2 vertical metres per kilometre. 77% of the route is flat, 12% climbs moderately (2 to 6%) and 0% is steeper than 6%.

Is Reims Champagne Run a loop course?

Yes, Reims Champagne Run is laid out as a loop: start and finish are in the same place.

Is there a GPX file for the Reims Champagne Run course?

Yes. The Reims Champagne Run course is on this page as a free GPX download — ready to import into Garmin, Wahoo, Komoot, Strava or any other app that reads GPX.

How should I prepare for Reims Champagne Run?

Preparation for Reims Champagne Run should account for 21.1 km, 68 m of elevation gain, current training load, and available training time. An adaptive plan helps place key sessions without ignoring recovery and real life.

What pacing strategy works for Reims Champagne Run?

The pacing strategy for Reims Champagne Run should reflect 21.1 km, 68 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.

When does Reims Champagne Run take place?

Reims Champagne Run takes place on October 11, 2026.

Where does Reims Champagne Run take place?

Reims Champagne Run takes place in Reims, France.

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