
The Extrem Run 5 Hills is an ultratrail in the far west of the Czech Republic, run since 2022 over five summits of the Egerland. It goes from point to point, and its weight sits at the end: the longest climb starts after 66 kilometres and the finish is the highest point of the day. Preparing for it means preparing for a late reckoning.
The route traces the westernmost border area of the Czech Republic and keeps changing surface: paved roads, cycle-touring paths and forest terrain take turns. That makes the day a blend of road kilometres where the legs take a pounding and forest sections that ask for sure footing. Because the course runs point to point, there is no lap to learn and divide up second time round.
The first 20 kilometres bring three climbs. The second, from km 4, is short but tops 20 percent at one point, and the third, from km 15, lifts you to just over 730 metres. After that the terrain drops away over many rolling kilometres to about 460 metres, broken only by short rises around km 41 and km 60.
The race is decided in its final third. From km 67 the trail climbs for almost four kilometres at close to nine percent, gaining more than 300 metres, and then a long descent follows. The last six kilometres still hold two ramps of about two kilometres each, the first with pitches near 24 percent. The finish sits close to 1,000 metres, some 450 metres above the start.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|---|---|---|---|---|
| km 0.3 | 2.5 km | 4 % | 11.1 % | +99 m | Cat. 4 |
| km 4.1 | 2.2 km | 7.8 % | 22.9 % | +174 m | Cat. 3 |
| km 15.3 | 2 km | 7.8 % | 17.2 % | +154 m | Cat. 4 |
| km 41.4 | 1 km | 7.5 % | 16.9 % | +77 m | — |
| km 60.5 | 1.3 km | 6.1 % | 13.7 % | +78 m | — |
| km 66.9 | 3.7 km | 8.9 % | 22.7 % | +331 m | Cat. 2 |
| km 85.4 | 2.2 km | 8.6 % | 24 % | +186 m | Cat. 3 |
| km 88.5 | 2.1 km | 8.3 % | 15.8 % | +169 m | Cat. 3 |
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.
Split the day into three parts: a hilly opening, a long middle section that mostly descends, and a mountainous finale from km 67. The first three climbs arrive while you are fresh and tempt you to run them. Power-hike the steep parts from km 4 and km 15 instead, because every metre you force there is missing 60 kilometres later.
The middle stretch from km 20 to km 66 is the real test of discipline. It drifts downhill on a lot of firm ground and invites a pace that feels easy but wears down the quads on tarmac and cycle paths more than it seems. Run it deliberately calm and eat on a schedule so you reach the big climb with something left.
From km 67 the only goal is to keep moving upward steadily. A strong hike handles the long climb best, and the descent that follows is not the place to bank time but to save your legs for the two closing ramps. Whoever can still run there gains the most places.

Age-group runners need roughly 11 to 16 hours for the 90-odd kilometres. It is a long, mostly aerobic effort, but not an even one: steep ramps with short spikes alternate with long flat or downhill stretches where you can, and have to, run with purpose.
The decisive phases come late. The long climb from km 67 and the two ramps in the last six kilometres demand climbing strength when your legs already carry more than 60 kilometres. Build long runs with their vertical at the end, and finish long sessions with a steep climb at hiking pace. Fast uphill walking on gradients over 20 percent is a skill of its own here and worth practising.
The surface needs a twofold preparation. Many kilometres of tarmac and cycle path load joints and muscles differently from pure trail, so long road mileage belongs in the plan alongside forest paths where you practise descending with confidence. Test shoes that handle both on at least one run beyond 50 kilometres.
With the race at the end of May, the build falls into winter and spring. Put the longest sessions in April and early May and rehearse fuelling over many hours, because an empty stomach after km 67 costs more here than a modest pace through the middle.

Download the Extrem Run 5 Hills 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.
Extrem Run 5 Hills is 90.8 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.
Extrem Run 5 Hills has around 2,258 m of elevation gain over 90.8 km. That affects pacing, muscular load, and preparation for late-race sections.
Extrem Run 5 Hills is classified as Mountainous, averaging 24.9 vertical metres per kilometre. 14% of the route is flat, 34% climbs moderately (2 to 6%) and 9% is steeper than 6%.
The hardest climb of Extrem Run 5 Hills starts at kilometre 66.9, runs for 3.7 km at an average of 8.9% and gains 331 metres. Cycling-convention rating: Cat. 2. 8 climbs are mapped in total.
No, Extrem Run 5 Hills is a point-to-point course: start and finish are in different places.
Yes. The Extrem Run 5 Hills 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 Extrem Run 5 Hills should account for 90.8 km, 2,258 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 Extrem Run 5 Hills should reflect 90.8 km, 2,258 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.
Extrem Run 5 Hills takes place on May 29, 2027.
Extrem Run 5 Hills takes place in Vojtanov, Czech Republic.
Registration runs through the organiser: extremrun5hills.cz. YOUB shows you the course, elevation profile and training plan for your preparation.