
The 100 miles are the one course at Oh Meu Deus by UTMB that arrives from far away: it starts nearly 60 kilometres southwest of the Seia finish as the crow flies, below 200 metres, and follows old transhumance paths into the Serra da Estrela from the evening on. The hardest climb comes only after kilometre 120, and your preparation has to aim at it.
The gun goes on Friday evening, and the opening is anything but gentle. Two steep ramps lift you to nearly 1,200 metres within the first 17 kilometres, the second averaging 28 percent. The course then falls back into the valleys: between kilometres 25 and 60 it mostly stays below 500 metres, with no long climb but plenty of small rises on the ways the herds once walked.
From kilometre 75 the ground gets bigger. Two back-to-back climbs reach around 1,350 metres, more waves follow, and near kilometre 115 a descent takes you down to just above 400 metres. Almost 1,500 metres of climbing to the highest point of the race still lie ahead.
At kilometre 125 the Vertical Kilometer begins, the same one the 100K and 50K take: nearly four kilometres averaging 25 percent, which with the ground above it carry you to around 1,900 metres. After the long descent a climb of almost 600 metres still stands in the way at kilometre 142, before the course rolls out to Seia. Conditions left by fires may still change the route.
| Start | Length | Ø | Max. | Gain | Cat. |
|---|---|---|---|---|---|
| km 2.3 | 2.4 km | 18.6 % | 37.8 % | +443 m | Cat. 2 |
| km 13.1 | 1.4 km | 28.2 % | 43.9 % | +395 m | Cat. 2 |
| km 75.3 | 2.3 km | 15.2 % | 32.1 % | +347 m | Cat. 2 |
| km 77.9 | 2.8 km | 12.5 % | 22.4 % | +354 m | Cat. 2 |
| km 94.4 | 5.3 km | 8.3 % | 23 % | +440 m | Cat. 2 |
| km 121 | 3.4 km | 9.5 % | 26.4 % | +320 m | Cat. 2 |
| km 124.6 | 3.9 km | 25 % | 43.6 % | +982 m | HC |
| km 141.9 | 4.4 km | 13.4 % | 34.4 % | +588 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.
The first 17 kilometres cost more than their share of the distance suggests. You are fresh, the evening is sliding into the first night, and the ramps tempt you to go with the field. Walk them calmly, because roughly 1,000 metres of climbing are only the warm-up here.
The valleys that follow are the most runnable stretch of the race, and that makes them the quiet trap. Bank time between kilometres 25 and 60 and you pay it back double the next day. Hold a pace at which you can eat, and run the small rises only while your breathing stays calm.
Everything is settled between kilometres 121 and 146. For many the Vertical Kilometer falls in the second night or the morning after, some 30 hours in. Until then, think in sections rather than kilometres: what counts is reaching the foot of that climb with an appetite and strength left in your quads, because the long descent behind it is what makes the last big hill at kilometre 142 so hard.

Age-group athletes should expect around 35 to 48 hours, which for most means two nights out. The effort is almost entirely aerobic and low, broken by long steep stretches you walk. Half the course is steeply up or down and hardly anything is flat, so your base has to come from hours on hilly ground, not from kilometres on the level.
The race makes its decision after kilometre 120, so you have to learn to climb tired. Put two long sessions on consecutive days and place the steepest climbing at the end of each. One session with a long ascent at 20 percent or more is worth more than three brisk hill runs.
The descent from the high point and the waves after it demand quads that can still brake after more than a day. Introduce steep downhill running early and in small doses, then build it up until you can handle it at the end of long sessions.
The late-April date puts your longest sessions in late winter, so schedule them in good time. At least one long run belongs in the night, with a headlamp, food to plan and the fatigue you expect in the race. Use it to test your kit too, for a course that swings between under 200 and around 1,900 metres.

Download the Oh Meu Deus by UTMB 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.
Oh Meu Deus by UTMB is 167 km long. That distance shapes how much aerobic endurance, pace durability, and race-specific work belong in the training plan.
Oh Meu Deus by UTMB has around 7,960 m of elevation gain over 167 km. That affects pacing, muscular load, and preparation for late-race sections.
Oh Meu Deus by UTMB is classified as Mountainous, averaging 48.2 vertical metres per kilometre. 7% of the route is flat, 21% climbs moderately (2 to 6%) and 25% is steeper than 6%.
The hardest climb of Oh Meu Deus by UTMB starts at kilometre 124.6, runs for 3.9 km at an average of 25% and gains 982 metres. Cycling-convention rating: HC. 8 climbs are mapped in total.
No, Oh Meu Deus by UTMB is a point-to-point course: start and finish are in different places.
Yes. The Oh Meu Deus by UTMB 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 Oh Meu Deus by UTMB should account for 167 km, 7,960 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 Oh Meu Deus by UTMB should reflect 167 km, 7,960 m of elevation gain, and your current fitness. Start controlled and keep margin for sections where the profile or fatigue makes target pace harder.
Oh Meu Deus by UTMB takes place on April 30, 2027.
Oh Meu Deus by UTMB takes place in São Romão, Portugal.
Oh Meu Deus by UTMB offers 4 distances — Oh Meu Deus 100m: 167 km; Oh Meu Deus 50K: 52 km; Oh Meu Deus 100K: 94 km; Oh Meu Deus 20K: 22 km.
Registration runs through the organiser: ohmeudeus.utmb.world. YOUB shows you the course, elevation profile and training plan for your preparation.