TronFjellet Ultra.
Nobody shows you the way at the TronFjellet Ultra: around Østkjølen near Alvdal there are no markings, only your GPS track, and everything you need comes with you. Close to 50 km over rock and off-trail ground therefore asks for mountain legs and, above all, for navigation that still works when you are tired.
TronFjellet Ultra 2027: Course, Elevation & Route Profile
The route comes back to where it began as a loop, but its difficulty is unevenly spread. The first 23 km or so stay below 1,000 metres and still never settle, going up and down all the way. The clearest rise starts at km 16.5, with 224 metres of climbing packed into less than a kilometre and a half.
From km 23.5 the ups and downs turn into a staircase. One long climb gains 555 metres over 3.6 km, a short pitch at km 28 averages close to 30 percent, and two more steep ramps follow soon after. The last big ascent begins at km 32.7 and tops out after about 35 km at the high point, a little over 1,600 metres. From there the course drops nearly 900 metres in under eight kilometres before six rolling kilometres bring you to the finish.
The ground and the responsibility for crossing it are what define this race. Off-trail stretches alternate with technical rock and steep descents, and up high you are in exposed mountain terrain where the weather can turn quickly. You follow your GPS track alone, carry what you need and share the course with 24 others at most, so do not count on a runner ahead to follow.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|---|---|---|---|---|
| km 13.3 | 0.6 km | 17.7 % | 53.5 % | +102 m | Cat. 4 |
| km 16.5 | 1.4 km | 16.3 % | 25.3 % | +224 m | Cat. 3 |
| km 19.7 | 0.8 km | 9.2 % | 14.7 % | +69 m | — |
| km 23.5 | 3.6 km | 15.3 % | 55.9 % | +555 m | Cat. 2 |
| km 27.7 | 0.9 km | 29.5 % | 69.8 % | +266 m | Cat. 3 |
| km 31 | 0.4 km | 29.6 % | 93 % | +118 m | Cat. 4 |
| km 31.6 | 0.4 km | 22.9 % | 63.7 % | +86 m | Cat. 4 |
| km 32.7 | 2.9 km | 16.1 % | 27.5 % | +463 m | Cat. 2 |
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 TronFjellet Ultra 2027.
Start under control
Plan this day in hours, not in minutes per kilometre: on rock and trackless ground your pace tells you little. The first 23 km hold enough climbing to tire you quietly without deciding anything yet. Run them so that you can keep eating and calmly check every change of direction on your watch.
Hold your rhythm
The race is decided between km 23.5 and the high point, a net gain of more than 1,000 metres. The ramps near 30 percent are for hiking, in a rhythm you can still hold on the final ascent. Arrive on top with something left, because a change of weather in exposed terrain demands the energy to dress, eat and think clearly.
Spend what is left
The biggest trap is the long descent that follows. Nearly 900 metres of drop after 35 km tempts you to win back time, but tired feet place badly on rock and a missed turn costs more than any slow minute. Look at the track more often than seems necessary on the way down. And do not treat the bottom as the end: the closing kilometres still roll.
Training plan for TronFjellet Ultra 2027: 12-week build
Build the base
If you have solid trail experience, expect something like ten to sixteen hours, and considerably more if the navigation falters. That is a long, mostly aerobic effort with hours of steep hiking in it. Your limit will be the muscular work of going steeply up and down more than your endurance as such.
Train race pace
Build your training around long mountain days with most of the climbing at the back end. The course asks for its hardest vertical work after more than 20 km, so rehearse exactly that: hours of easy running, then several steep ascents in a row at a strong hike. Very steep slopes are a skill of their own, and flat tempo sessions will not replace them.
Rehearse the course
The long descent from the high point needs preparing in the thighs and in the feet. Run plenty of downhill, ideally late in long sessions, and add strength work for legs and core. Do it on rock and rough trackless ground, since forest roads teach neither sure footing nor tired footwork.
Arrive fresh
Self-reliance matters most. Run unmarked routes by following a track on your watch, off trail and in poor visibility too, until you catch mistakes early. Train with the pack you will carry on 18 September, eat and drink from it over many hours, and test your clothing in wet and wind. If you might use the full 24 hours, practise navigating in the dark as well.
Courses
Download the TronFjellet Ultra 2027 course as a GPX file for your watch or bike computer.
Let YOUB adapt your plan for TronFjellet Ultra 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.
Everything about TronFjellet Ultra.
How long is TronFjellet Ultra 2027?
TronFjellet Ultra 2027 is 50 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 TronFjellet Ultra 2027 have?
TronFjellet Ultra 2027 has around 2,877 m of elevation gain over 50 km. That affects pacing, muscular load, and preparation for late-race sections.
What is the route profile of TronFjellet Ultra 2027?
TronFjellet Ultra 2027 is classified as Mountainous, averaging 58.4 vertical metres per kilometre. 20% of the route is flat, 14% climbs moderately (2 to 6%) and 22% is steeper than 6%.
What climbs does TronFjellet Ultra 2027 have?
The hardest climb of TronFjellet Ultra 2027 starts at kilometre 23.5, runs for 3.6 km at an average of 15.3% and gains 555 metres. Cycling-convention rating: Cat. 2. 8 climbs are mapped in total.
Is TronFjellet Ultra 2027 a loop course?
Yes, TronFjellet Ultra 2027 is laid out as a loop: start and finish are in the same place.
Is there a GPX file for the TronFjellet Ultra 2027 course?
Yes. The TronFjellet Ultra 2027 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 TronFjellet Ultra 2027?
Preparation for TronFjellet Ultra 2027 should account for 50 km, 2,877 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 TronFjellet Ultra 2027?
The pacing strategy for TronFjellet Ultra 2027 should reflect 50 km, 2,877 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 TronFjellet Ultra 2027 take place?
TronFjellet Ultra 2027 takes place on September 18, 2027.
Where does TronFjellet Ultra 2027 take place?
TronFjellet Ultra 2027 takes place in Alvdal, Norway.
How do I register for TronFjellet Ultra 2027?
Registration runs through the organiser: racetracker.one. YOUB shows you the course, elevation profile and training plan for your preparation.
