The Ötztaler Radmarathon is regularly rated one of the world's hardest one-day cycling events. 238 kilometres. Four Alpine passes. 5,500 metres of climbing. A start in Sölden, a finish in Sölden, and four climbs in between — Kühtai, the Brenner Pass, the Jaufenpass, and the legendary Timmelsjoch — that build cumulatively across 10-14 hours of riding for most amateurs.
Here is the thing nobody tells you about the Ötztaler. The first three passes are the warm-up. Kühtai feels long but rideable. The Brenner is steady. The Jaufenpass bites a little. By the time you start the Timmelsjoch at km 200, you've already done 3,000m of climbing and 7-8 hours of riding. Then the route turns up for 30 kilometres at 7.1%. That climb is the day. Everything before it is positioning for it.
Here is how to train for it across 18 weeks, with the right physical demand, the sustained-climbing capacity, and the pacing discipline that turns the Timmelsjoch from a grind into a controlled effort.
Key Takeaways
- 18-week build is the working minimum for riders with an 8-10 hour weekly base
- Peak volume 13-16 hours/week with sustained climbs of 60+ minutes weekly
- 3.4 W/kg minimum, 3.7-4.0 W/kg for 9-12 hours, 4.0+ W/kg for sub-9
- Train climbs that match Timmelsjoch duration: 60-90 minute sustained efforts
- One 8-9 hour over-distance ride before the taper
- 90-110g carbs/hour from the gun
- 34x32 minimum gearing, 34x34 if you have it on the back
What the Ötztaler Actually Demands
238 kilometres. 5,500m of climbing across four passes. Most finishers are out for 9-14 hours. The 06:45 start and the September date mean cool dawn departures (4-8°C in Sölden), warm valley sections by midday (20-25°C), and cold summit conditions on the high passes regardless of the day's overall temperature. The Timmelsjoch at 2,509m can be 2-5°C in early September even when Sölden is 22°C.
The route has a deceptive shape. The first climb — Kühtai — comes in the first 30 kilometres. 22km long at 6.1%. It feels like a normal Alpine sportive opener. Most amateurs ride it at high Z2, no surprises. Then the Brenner Pass — 22km at 6.2% — comes mid-route. Same deal. Steady tempo, manageable gradient, fine.
The Jaufenpass at km 145 is where the day starts revealing itself. 16.4km at 7.1% — steeper than the first two, and now your legs have 3,000m of climbing in them already. Most amateurs ride the Jaufenpass at sub-threshold but feel the cumulative load. By the summit, the legs know it's been a long day already.
Then the Timmelsjoch. 29.9km. 7.1% average. The longest sustained climb on the route, landing at km 200 on legs that have done 3,000m+ of climbing and 7-8 hours of riding. The steepest pitches are mid-climb. The summit is at 2,509m. The descent into Sölden is fast, exposed, and often cold. Riders who paced the first three passes correctly ride the Timmelsjoch at sustainable wattage and finish well. Riders who didn't, climb the Timmelsjoch in pieces, with stops every 5km, and the descent home is a blur of fatigue and survival.
The defining demand is sustained climbing capacity across cumulative load. Train for 60-90 minute climbs. Train back-to-back climbing days. Train the shape of the Timmelsjoch specifically.
The Physical Bar: W/kg and Endurance Capacity
Three numbers tell you whether the Ötztaler is a realistic target this year.
FTP in W/kg. The floor is 3.4 W/kg with the right gearing. Mid-pack finishes at 3.7-4.0 W/kg. Sub-9-hour times need 4.0+ W/kg. The front of the field is 4.5+ W/kg with race-day weight to match. Use the W/kg calculator to set the number, and the FTP zones tool to set training intensities.
Sustained climbing capacity. You need to be able to climb for 60-90 minutes at sub-threshold without it being a special occasion. The Timmelsjoch is 2-3 hours of climbing for amateurs. If your longest sustained climb in training has been 30 minutes, the back half of the Timmelsjoch will end your day. Build at least four sessions of 2x25-35 minutes at 85-90% FTP on real gradient before the taper.
Long-ride durability with climbing density. By peak block, you should have done one 8-9 hour ride with 4,000m+ of climbing — the closest single-day analogue to the Ötztaler's first 200km. Riders who have only ridden 6-hour rides walk into the Timmelsjoch guessing about how the back four hours of the day go. The guess is almost always wrong.
If those three boxes are ticked by week 15, the Ötztaler becomes a controllable hard day. If they aren't, the Timmelsjoch becomes a survival exercise where you stop counting time and start counting kilometres to the summit.
The 18-Week Framework
Four blocks: base, build, peak, taper. The Ötztaler's distance and elevation make 18 weeks a sensible build. Volumes assume a starting base of 8-10 hours/week.
Weeks 1-5: Base
Volume: 9-11 hours/week.
Four to five rides, 80% in Zone 2. The aerobic engine. Stephen Seiler's polarised research is the framework: easy stays genuinely easy. The temptation in week 1 is to start hammering. Resist it. Riders who run base hard arrive at the Timmelsjoch aerobically stale.
Anchor session: long Z2 ride building from 3.5 hours to 5 hours over the block, with at least 1,200m of climbing in the back half.
Weeks 6-10: Build
Volume: 11-13 hours/week.
Two quality sessions per week. One threshold (4x10 minutes at 95-100% FTP, building to 3x15 minutes by week 10). One sustained climbing block — 3-4x12 minutes at 85-92% FTP on a real climb. The Ötztaler's climbs are 60-180 minutes long; a 12-minute hill repeat is the building block, not the destination.
John Wakefield prescribes low-cadence torque work for sustained climbing — 4-minute efforts at 40-60 RPM at RPE 7/10. One session per week through this block builds the muscular endurance the Timmelsjoch demands.
Long ride climbs to 6.5 hours with 2,500m of climbing.
Weeks 11-15: Peak
Volume: 13-16 hours/week.
Sustained climbing volume goes up. Long ride includes 4 sustained climbs of 15-30 minutes. By week 13, do one over-distance ride: 8-9 hours, ideally with 4,000m+ of climbing, full fuelling rehearsal. Real Alpine terrain if possible.
Quality sessions tighten to event specificity: one threshold session, one sustained climbing block of 2x25-35 minutes at 85-90% FTP. The Timmelsjoch is 2-3 hours of climbing — train its duration.
Dan Lorang's athletes ride this kind of sustained-climbing block before Grand Tour mountain stages. Same principle scaled to amateur level: protect easy days, drop volume on intensity days, make the long ride climbing-specific.
Weeks 16-18: Specific + Taper
Weeks 16-17: One final stacked weekend with race-pace simulation, ideally on Alpine terrain. Saturday 6 hours with 3,000m of climbing including a 30-minute sustained climb at sub-threshold. Sunday 4 hours rolling. Volume holds at 14-15 hours.
Week 18: Taper. Volume drops 50%. Two short rides with 5-10 minute openers at threshold. Travel to Sölden 3-4 days early — pre-ride 30km of the route, ride a section of Kühtai easy, dial the gearing under load. Eat, sleep, hydrate. The fitness is in.
If you build your plan in TrainingPeaks, the structured workouts let you replicate the climbing-specific blocks precisely, and the ATL/CTL tracking shows you when the Timmelsjoch-specific work has landed.
Cumulative-Load Nutrition Strategy
The Ötztaler is 10-14 hours of riding with 5,500m of climbing. Calorie demand exceeds anything below 200km in this cluster. Train fuelling to match.
On the bike. 90-110g carbohydrate per hour from the gun. That's two gels and a bar each hour, or a 90g/hour drink mix paired with one solid item every 45 minutes. Asker Jeukendrup's research on multiple transportable carbohydrates is the basis for the standard 2:1 glucose-fructose mix used by most riders — your gut handles higher rates when you blend the sugars. Train your gut to 100g/hour on at least three long rides before September.
Aid stations. Well-stocked, professional, but spread out late in the day. Refill bottles, eat real food, leave inside 10 minutes. Don't sit down. The Hochgurgl aid station before the Timmelsjoch is your most important stop — full bottles, two gels in pockets, caffeine gel saved for the climb. The 50km gap from the previous aid station to Hochgurgl matters; arrive there with your bottles already low and you've planned wrong.
Hydration. 750ml/hour through midday, dropping to 500-600ml/hour on cold summits. Salt tabs in the bottles, electrolyte mix in everything. The summit of the Timmelsjoch is cold and you'll drink less; force-fuel anyway.
Pre-race carb-loading. 8-10g/kg body weight in the 24-36 hours pre-race. A 70kg rider eats 560-700g of carbs the day before. Austrian dinner is generous; lean into it.
Caffeine. A caffeine gel at the base of the Timmelsjoch sharpens the longest sustained effort of the day. Another at the 15km mark of the climb keeps focus through the steep middle. Don't stack caffeine if you're not used to it.
For underlying fuelling science, the carbs-per-hour guide covers gut training and absorption. For race-day timing, the race-day nutrition guide walks through the protocol.
Common Mistakes
Pacing the first three passes on feel rather than power. Kühtai, Brenner, and Jaufenpass all feel manageable on fresh legs. The trap is they let you ride above sustainable wattage. Stay 5-8 bpm below your sportive threshold on every one of them. Pace on power, not on the riders flying past — they are the ones grinding the Timmelsjoch in pieces three hours later.
Treating the Timmelsjoch like another climb. It is the race. Plan it like a 2.5-hour threshold test: full bottle at the base, two gels in pockets, caffeine gel at the 15km marker, and a wattage ceiling you do not break regardless of who passes you. The summit is the win — pace to get there in one piece, not to outdrag your neighbour halfway up.
Underdressing for the descents. The Brenner descent is fast and exposed. The Timmelsjoch descent is the longest of the day, drops 1,500m, and finishes in cold late-afternoon shadow. A gilet stashed in the jersey is non-negotiable. Long-finger gloves for the high-pass summits even in early September.
Under-gearing. 5,500m of climbing on a 50/34 with an 11-28 cassette is a recipe for a 50 RPM grind on the Timmelsjoch. 34x32 minimum, 34x34 if you have it. Test on a 10% local hill at the end of a 5-hour ride.
Skipping the over-distance ride. One 8-9 hour ride with 4,000m+ of climbing in training is the bar. Riders who skip it because 'I don't have time' show up to Sölden guessing about hours 8-12, and the guess is almost always wrong.
Underestimating altitude on the Timmelsjoch summit. 2,509m is high enough that amateurs lose 5-10% of sea-level sustainable power on the steepest pitches. Pace on power, not heart rate, and accept the wattage at altitude is not the same as the wattage in the valley.
Kit, Gearing, and Logistics
Bike. A climbing-friendly road bike. Disc brakes if you have them — the descents off Kühtai, Brenner, Jaufenpass, and Timmelsjoch are 15-30 minute braking efforts in succession. Tubeless or quality clincher tyres, full repair kit; mechanicals at km 180 mean the broom wagon and a long ride home in a van.
Gearing. 34x32 minimum, 34x34 if your derailleur fits it. Test the gearing on a 10% local climb at the end of a 5-hour ride. If you're at 50 RPM in your easiest gear, change the cassette before flights are booked.
Clothing. Jersey, bibs, arm warmers, gilet for the start (4-8°C). Long-finger gloves for the dawn departure. Gilet stashed for the high-pass descents. A second set of base layers if rain is forecast — September Alps weather is unpredictable, and the Timmelsjoch summit in cold rain is a survival situation. Sun sleeves for midday, sunscreen at every aid station.
Hydration carry. Two bottles minimum, three is sensible. The 50km gap before Hochgurgl is a real factor; arriving there with empty bottles is a planning error.
Recovery kit. Foam roller, compression sleeves, recovery shake powder, electrolyte tabs. Sölden is a small ski resort town in summer; book accommodation early.
Logistics. Entry by ballot only, opening in late autumn for the following September. Acceptance rates around 30%. If you draw a slot, book accommodation in Sölden or nearby Längenfeld. Most international riders arrive 3-5 days early to acclimatise to altitude and pre-ride.
Free Plan Templates (Inside the Community)
Inside the Roadman Cycling community on Skool we host a free library of plan templates — sportive, road racing, gravel, base, build, VO2 max and FTP builder blocks. For the Ötztaler, stack a base block into a build block and overlay this article's sustained-climbing peak block plus the over-distance ride. Same structural templates we use as the starting point for paid coaching. Free to join.
How Roadman Coaches This
At Roadman Cycling we periodise the 18-week Ötztaler build around your starting fitness, your local terrain (climbing-specific work is the hardest to fake on flat ground), and the time target you're chasing. Generic plans break on this event — the sustained-climb work needs to land in the right block, the over-distance ride needs to be timed against your training stress, and the Timmelsjoch pacing rehearsal needs to be done as a single sustained threshold effort.
Most of our coached athletes work through TrainingPeaks — structured workouts, daily metrics, and a coach who actually reads your data instead of pasting templates. Coaching tiers run from $175/month for structured plan oversight to $1,250/month for full one-to-one coaching. Learn more about our coaching or how we work with riders across the UK, Ireland, and the US.
The Ötztaler rewards riders who treat it like what it is: a 5,500m four-pass day where the Timmelsjoch is the entrance exam at hour 8. Train climbing-specific. Pace the early passes on power. Show up to the Hochgurgl aid station with a clear plan for the next three hours. The medal is yours, and the ride is one of cycling's hardest one-day events for a reason.