Preparation guide · Quebrantahuesos
Quebrantahuesos 2027: how to prepare it and what to eat on each climb
The next edition is on Saturday 19 June 2027, starting in Sabiñánigo (Huesca, Spain) at 7:30. Here you have the route of Quebrantahuesos and Treparriscos, its climbs, the usual weather and how much to eat and drink for your target time.
Quebrantahuesos: route and profile
| Climb | Where | Length | Gain | Average grade | Top |
|---|---|---|---|---|---|
| Somport | km 21–48 | 27.6 km | +839 m | 3.0 % | 1,623 m |
| Col de Marie-Blanque | km 88–99 | 10.6 km | +734 m | 6.9 % | 1,053 m |
| Col du Portalet | km 111–148 | 37.2 km | +1361 m | 3.7 % | 1,791 m |
| Hoz de Jaca climb | km 168–171 | 2.7 km | +175 m | 6.5 % | 1,230 m |
Route keys
- The first 50 km climb gently all the way to the Somport: it's easy to get carried away by the bunch. Ride it below your threshold.
- The Marie-Blanque is short but the hardest part of the day: its last 4 km are over 10 %. Get there with your eating done.
- The Portalet is almost 30 km of climbing from Laruns: this is where your day is decided. Eat and drink regularly from the bottom.
- After the Portalet there are 45 km left with the short climb to Hoz de Jaca: save something for the end and keep drinking, it gets hot at that time of day.
8 more keys in WinWatts: with the forecast for the days before, the wind and heat section by section, and on which climbs to eat and drink.
Quebrantahuesos: what to eat and drink
How much a typical rider (72 kg) needs depending on their time. From 2–3 hours on, what matters most is eating carbs regularly (every 20–30 minutes) and drinking before you're thirsty.
| Total time | Carbs per hour | Total carbs | Drink per hour | Total drink | Sodium per hour |
|---|---|---|---|---|---|
| 6 h | 75 g/h | 365 g | 650 ml/h | 3.9 l | 450 mg/h |
| 7 h 30 | 75 g/h | 475 g | 650 ml/h | 4.9 l | 600 mg/h |
| 9 h | 75 g/h | 575 g | 650 ml/h | 5.9 l | 600 mg/h |
| 10 h 30 | 75 g/h | 685 g | 650 ml/h | 6.8 l | 600 mg/h |
More than 60–90 g of carbs per hour only if you've trained it. Don't try on race day what you haven't tolerated in training.
Section by section between feed stations (for about 7 h 30)
At the feed stations (km 47, 93, 104, 130, 139, 155, 172) you stop, eat something and refill your bottles (the ones at km 93 and 130 only have drinks). But what matters most is what you take on the move until the next one: this table tells you how much. You can pick it up at the station or carry your own gels and bars; what matters is spreading it out, not eating it all at once when you stop.
| Section | Duration | Carbs to take in the section | Drink in the section |
|---|---|---|---|
| km 0 → 47 | 1 h 54 | 140 g | 1,250 ml |
| km 47 → 93 | 1 h 16 | 95 g | 800 ml |
| km 93 → 104 | 0 h 46 | 55 g | 500 ml |
| km 104 → 130 | 1 h 05 | 80 g | 700 ml |
| km 130 → 139 | 0 h 32 | 40 g | 350 ml |
| km 139 → 155 | 0 h 47 | 60 g | 500 ml |
| km 155 → 172 | 0 h 34 | 40 g | 350 ml |
| km 172 → 198 | 0 h 35 | 45 g | 400 ml |
The key section is the first one: there's no feed station until km 47, so you leave Sabiñánigo with full bottles and about 140 g of carbs on you (for example, 3 gels and a bar).
Not going to take 7 h 30? In WinWatts you set your target time and the feed stations, and you see these sections with your real pace on each climb. You can also compare scenarios: what changes if you go faster or slower.
Quebrantahuesos: weather in previous editions
What the weather was like during the event (from the start to the finish of an average rider) in recent editions:
| Year | Low | High | Rain | Max wind |
|---|---|---|---|---|
| 2022 | 20 ºC | 37 ºC | 0.0 mm | 17 km/h |
| 2023 | 15 ºC | 29 ºC | 1.5 mm | 10 km/h |
| 2024 | 12 ºC | 23 ºC | 0.3 mm | 16 km/h |
| 2025 | 16 ºC | 35 ºC | 0.0 mm | 9 km/h |
| 2026 | 17 ºC | 31 ºC | 1.0 mm | 10 km/h |
Treparriscos: route
It passes through Yebra de Basa, Fiscal, Broto and the Cotefablo pass (km 65) before returning via Biescas. Official profile and track on the organisers' website.
Route keys
- It's a very complete medium distance: don't treat it as «the short one». Spread your effort and keep strength for Cotefablo, in the last third.
- With 3–5 hours of effort you also need to eat: from the first hour, something every 20–30 minutes.
More keys in WinWatts: with the forecast for the days before, the wind and heat section by section, and on which climbs to eat and drink.
Treparriscos: what to eat and drink
How much a typical rider (72 kg) needs depending on their time. From 2–3 hours on, what matters most is eating carbs regularly (every 20–30 minutes) and drinking before you're thirsty.
| Total time | Carbs per hour | Total carbs | Drink per hour | Total drink | Sodium per hour |
|---|---|---|---|---|---|
| 3 h | 60 g/h | 150 g | 550 ml/h | 1.6 l | 450 mg/h |
| 3 h 45 | 75 g/h | 185 g | 650 ml/h | 2.4 l | 450 mg/h |
| 4 h 30 | 75 g/h | 255 g | 650 ml/h | 2.9 l | 450 mg/h |
| 5 h 15 | 75 g/h | 290 g | 650 ml/h | 3.4 l | 450 mg/h |
More than 60–90 g of carbs per hour only if you've trained it. Don't try on race day what you haven't tolerated in training.
Treparriscos: weather in previous editions
What the weather was like during the event (from the start to the finish of an average rider) in recent editions:
| Year | Low | High | Rain | Max wind |
|---|---|---|---|---|
| 2022 | 20 ºC | 34 ºC | 0.0 mm | 15 km/h |
| 2023 | 15 ºC | 26 ºC | 0.0 mm | 7 km/h |
| 2024 | 12 ºC | 18 ºC | 0.1 mm | 10 km/h |
| 2025 | 15 ºC | 29 ºC | 0.0 mm | 5 km/h |
| 2026 | 17 ºC | 29 ºC | 0.0 mm | 11 km/h |
Your Quebrantahuesos, tailored to you
This guide uses a typical rider. In WinWatts we calculate it with your data:
- Your time, average power and finish time from your FTP and weight.
- The race-day forecast for each section, and what to wear.
- Your food and drink plan kilometre by kilometre, with your gels, bars and bottles.
- Your training plan until Saturday 19 June 2027, adjusted every week to how you're doing.
WinWatts is not affiliated with the organisers of the Quebrantahuesos. Dates, routes, schedules and registration: official website. Route data measured on the official track of the previous edition; weather from past editions (Open-Meteo). For guidance only: it doesn't replace advice from a health professional.