
The 5 km at the Semi-Marathon de La Rochelle is a short city race split cleanly in two: east to the Vieux-Port and back, then a gentle rise just past halfway and a falling run-in that ends on the stadium track. A fast time here depends on arriving at that rise with something left.
The course opens on a slight fall: over the first 600 metres you lose a good ten metres of height almost without noticing. From there it runs east through town in shallow waves to the Vieux-Port and its harbour towers, where the route turns back after a little over a kilometre and a half. The return takes a parallel street first, then heads west along the same road you started on.
The real work begins about 2.6 km in. Over the next kilometre the road climbs from almost sea level to around 20 metres, the highest point of the race. It is no ramp, but it is the one place where the ground pushes back for more than a moment. After that the course gives the height away again and swings north towards the Stade Armand Bouffénie.
That is where this race has its signature: the final metres are not on the road but on the stadium track. Aunis Athlétisme La Rochelle-Aytré organises the race, and it sets off a quarter of an hour ahead of the half marathon and the two-person relay.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|
Climb categories follow the road-cycling convention and rate the terrain itself (length and gradient) regardless of sport: Cat. 4 marks the easiest rated climbs, Cat. 1 the hardest, and HC (hors catégorie, “beyond categorization”) is reserved for the most brutal ascents. Short climbs below the Cat. 4 threshold stay unrated.
Order decides this race, not height. The falling start and the flat out-and-back to the harbour invite you to run the first two kilometres faster than you can afford. Take them at goal pace and not a second quicker: five kilometres leave no stretch on which an over-eager opening evens itself out.
The decisive section is the kilometre from about 2.6. Hold your effort steady there and let the watch give up a few seconds rather than defending the pace by force. The rise is gentle enough for even pressure, but it arrives exactly when a 5K hurts most, and overreaching here means you can no longer use the descent that follows.
You win those seconds back on the way to the stadium. From the high point the road falls, so lift your cadence there before the legs turn heavy. Keep the final sprint for the track.

Most runners will be out here for between 22 and 35 minutes. That is an effort just below maximum, hard from the first stride and with no stretch for recovery, since even the downhill is run at race pace.
Above all the course asks you to keep working evenly uphill after two and a half fast kilometres. Rebuild that order in training: let tempo work at goal rhythm flow without a break into a gentle rise of about five minutes, then accelerate straight away at the top. The moment that matters is the crest, where most runners ease off.
A race this short also needs speed endurance. Intervals of 400 to 1,000 metres slightly quicker than goal pace get you used to the breathlessness of the opening minutes, and short strides on a slightly falling road train the cadence you need on the way to the stadium.
A mid-March date puts the key speed sessions in January and February, so plan them early. The race goes off early on a Sunday morning, which makes it worth running some hard sessions before midday and rehearsing breakfast and warm-up along the way. Finish a few intervals on a track as well, so the change of surface at the end does not break your rhythm.

Download the Semi-Marathon de La Rochelle course as a GPX file for your watch or bike computer.
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.
Semi-Marathon de La Rochelle is 5 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.
Semi-Marathon de La Rochelle has around 34 m of elevation gain over 5 km. That affects pacing, muscular load, and preparation for late-race sections.
Semi-Marathon de La Rochelle is classified as Flat, averaging 6.7 vertical metres per kilometre. 49% of the route is flat, 25% climbs moderately (2 to 6%) and 0% is steeper than 6%.
No, Semi-Marathon de La Rochelle is a point-to-point course: start and finish are in different places.
Yes. The Semi-Marathon de La Rochelle 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.
Preparation for Semi-Marathon de La Rochelle should account for 5 km, 34 m of elevation gain, current training load, and available training time. An adaptive plan helps place key sessions without ignoring recovery and real life.
The pacing strategy for Semi-Marathon de La Rochelle should reflect 5 km, 34 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.
Semi-Marathon de La Rochelle takes place on March 14, 2027.
Semi-Marathon de La Rochelle takes place in La Rochelle, France.
Semi-Marathon de La Rochelle offers 3 distances — 5 km: 5 km; Semi-Marathon: 21.1 km; Relais à 2: 21.1 km (Half marathon).
Registration runs through the organiser: semimarathonlarochelle.fr. YOUB shows you the course, elevation profile and training plan for your preparation.