Les 15km de Woluwe.
The headline course of Les 15km de Woluwe is a road loop from Stade Fallon that links a former railway line, now a running path, with green spaces and city streets. It is not flat: the gentle slopes of the Woluwe valley add up to about 150 m of climbing, and that constant up and down is what your preparation has to answer.
Les 15km de Woluwe 2027: Course, Elevation & Route Profile
Start and finish are at Stade Fallon in Woluwe-Saint-Lambert. In between, the loop alternates between the old railway line, now used as a running path, green stretches and built-up streets of the municipality. The Woluwe valley sets the rhythm: no single ramp defines the race, instead long, gentle waves keep climbing, descending and level running in almost equal shares.
The longest continuous climb starts just before km 3 and rises over roughly a kilometre at a moderate grade onto the higher middle section. The course stays up there until around km 9, rolling several times without dropping away. After that it runs noticeably down into the valley.
From km 12 a second, shorter rise follows, steeper in places than the first. It comes late and meets legs that have already absorbed the whole rolling middle. The final kilometres then fall back to the stadium, where the loop ends where it began.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|---|---|---|---|---|
| km 2.9 | 1 km | 3.6 % | 6.1 % | +36 m | — |
| km 12.3 | 0.5 km | 3.3 % | 6.9 % | +15 m | — |
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.
How to pace Les 15km de Woluwe.
Start under control
Because climbing, descending and level ground are almost in balance here, run this loop by effort rather than by fixed kilometre splits. Let your splits slow on the first long climb and on the late rise, and take the time back on the descending stretches without overcooking them.
Hold your rhythm
The race is decided in the final third. After the long drop into the valley, the second climb arrives once your quads have already done their work. Get over it with an even stride and you can genuinely run the closing, gently falling kilometres back to Stade Fallon.
Spend what is left
The usual trap is at the start: the opening kilometres before the first climb feel easy, and in a crowded mass-participation field it is tempting to take them too hard. You pay for that on the climb and through the rolling middle. Just as costly is hammering the descent so hard that nothing is left for the climb that follows it.
Training plan for Les 15km de Woluwe: 12-week build
Build the base
Most recreational runners will take between about 70 and 110 minutes for the loop. The effort is mostly aerobic, around a brisk tempo run, but the rolling terrain keeps pushing it briefly above that. It is a race of sustained, even pressure, not a hill race.
Train race pace
The decisive sections are the roughly one-kilometre climb after km 3, which you want to run with control and without breaking rhythm, and the late rise from km 12. Prepare with steady runs on rolling ground whose final third you cover at goal race pace, so that you learn to settle straight back into your stride after every crest.
Rehearse the course
The core of the work is holding pace over the full distance: tempo blocks of several kilometres just under race pace, plus one session of short hill repeats a week. The long descent in the second half loads the quads, so brisk downhill running belongs in the build as well.
Arrive fresh
The race is held in mid-May on roads and the surfaced running path of the old railway line. You need no specific off-road training, but you do need the habit of finding your own pace in the crush of the opening kilometres. Small route changes are possible, so check the final course in race week.
Courses
Download the Les 15km de Woluwe course as a GPX file for your watch or bike computer.
Let YOUB adapt your plan for Les 15km de Woluwe dynamically
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Everything about Les 15km de Woluwe.
How long is Les 15km de Woluwe?
Les 15km de Woluwe is 15.2 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 Les 15km de Woluwe have?
Les 15km de Woluwe has around 155 m of elevation gain over 15.2 km. That affects pacing, muscular load, and preparation for late-race sections.
What is the route profile of Les 15km de Woluwe?
Les 15km de Woluwe is classified as Rolling, averaging 10.2 vertical metres per kilometre. 34% of the route is flat, 33% climbs moderately (2 to 6%) and 0% is steeper than 6%.
What climbs does Les 15km de Woluwe have?
The hardest climb of Les 15km de Woluwe starts at kilometre 2.9, runs for 1 km at an average of 3.6% and gains 36 metres. 2 climbs are mapped in total.
Is Les 15km de Woluwe a loop course?
Yes, Les 15km de Woluwe is laid out as a loop: start and finish are in the same place.
Is there a GPX file for the Les 15km de Woluwe course?
Yes. The Les 15km de Woluwe 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 Les 15km de Woluwe?
Preparation for Les 15km de Woluwe should account for 15.2 km, 155 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 Les 15km de Woluwe?
The pacing strategy for Les 15km de Woluwe should reflect 15.2 km, 155 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 Les 15km de Woluwe 2027 take place?
Les 15km de Woluwe 2027 takes place on May 16, 2027.
Where does Les 15km de Woluwe 2027 take place?
Les 15km de Woluwe 2027 takes place in Woluwe-Saint-Lambert, Belgium.
Which distances does Les 15km de Woluwe offer?
Les 15km de Woluwe offers 3 distances — 15 km: 15.2 km; 6 km: 6.6 km; 25 km Trail: 25.2 km.
How do I register for Les 15km de Woluwe?
Registration runs through the organiser: 15kmwoluwe.zatopekevent.com. YOUB shows you the course, elevation profile and training plan for your preparation.
