The Mallorca 312 is not a long sportive. It is an ultra-distance event with a mountain stage stuck on the front and 200km of rolling tempo bolted onto the back. That distinction is the thing nobody tells you, and it is the reason riders who finished a Marmotte feeling strong arrive at kilometre 220 in the Pla central plain wondering what happened.
Here is what actually happens. The Tramuntana climbs come early — Coll de Sóller, Puig Major, sometimes Sa Calobra — and the legs are fresh. You ride them well. You feel good. Then the route drops into the Pla, the heat lands by midday, and the next four hours of small rolling roads burn through whatever you did not earn back at the aid stations.
Here is how to train properly for the 312 across 16 weeks, with the right physical demand, the back-to-back capacity, and the nutrition rehearsal that keeps the second half ridable instead of survivable.
Key Takeaways
- 16-week build is the working minimum for riders with an 8-hour-a-week base
- Peak volume 12-15 hours/week with at least three back-to-back long-ride weekends
- 3.0 W/kg minimum, 3.4-3.8 W/kg for a sub-12 hour finish, 4.0+ W/kg for sub-10
- Train your gut to 90-100g carbs/hour before race week — not on race day
- The Tramuntana climbs are the easy part; the Pla is where the day is won or lost
- One 8-hour ride must already be in the legs before late April
- Mallorca-style heat exposure (gradual, not a sudden 30°C ride) matters in the final block
What the Mallorca 312 Actually Demands
312 kilometres. Around 5,000m of climbing. Late April Mallorca, which means cold dawns at 8-12°C in the Tramuntana shadows and 25-30°C heat across the Pla by midday. Most finishers are out for 10-14 hours.
The route shape is the part you cannot get from the headline. The first 100km climbs through the Tramuntana mountains — Coll de Sóller switchbacks, Puig Major's 12km grind, and (in some editions) the descent and return at Sa Calobra. This part is what every Mallorca training camp prepares you for. It is the part you'll feel comfortable on, because every Mallorca winter camp from January onwards rehearses these climbs.
Then the route drops south into the Pla central plain, and the 312 reveals what it really is. 150km of rolling tempo on small Mallorcan back roads, no shade, building heat, and a gradient profile that never lets you settle. You are not climbing. You are not descending. You are riding sustained tempo with constant 2-3 minute rises, and your legs and your gut are now eight hours into the day.
The finishing loop varies year to year. Some editions add the Coll de Femenia. Others tack on a final coastal kicker. The shape is constant: you finish a long day with one more climb in the legs you didn't quite remember was coming.
The defining physical demand is not climbing capacity. The Tramuntana is the demonstration that the rest of the day will require. The actual demand is sustained endurance — the ability to ride 10-12 hours and still hold tempo on the small rises after kilometre 250. That is the entire training problem.
The Physical Bar: W/kg and Endurance Capacity
Three numbers tell you whether the 312 is a realistic target this year.
FTP in W/kg. The floor is 3.0 W/kg if your endurance and fuelling are dialled in. Mid-pack starts around 3.4-3.8 W/kg. Sub-10-hour finishes need 4.0+ W/kg with the body composition and fuelling discipline to match. Use the W/kg calculator to get to a real number, and the FTP zones tool to set training targets.
Long-ride durability. You need to have ridden 7-8 hours in training before April without it ending in a bonk. The 312 is a 10-14 hour day for most finishers; if your longest pre-event ride is five hours, you are guessing about how the back four hours of the day go. Riders who guess wrong walk the last 30km. The longest training ride is not negotiable.
Heat tolerance. Late April Mallorca is not extreme heat by Mediterranean standards, but if your final block has been March/April British or Irish weather, the first 25°C ride of the year is the one where things go wrong. Gradual heat exposure in the final 4-6 weeks — even on the indoor trainer with the windows shut — moves the needle more than another threshold session.
If those three boxes are ticked by week 13, the 312 becomes a controllable day. If they aren't, it becomes a survival exercise. There is nothing wrong with surviving a 312 — finishers wear the medal regardless — but the framework below is built to do better than that.
The 16-Week Framework
Four blocks of four weeks each, with the back-to-back stacked-day capacity layered into the final eight weeks. Volumes assume a starting base of 6-8 hours per week. Adjust if you are starting higher or lower.
Weeks 1-4: Base
Volume: 7-9 hours/week.
Four to five rides, 80% in Zone 2. The aerobic engine that everything sits on top of. Stephen Seiler's polarised-training research is hardest to apply here because the temptation in week 1 is to run the easy stuff hard. Resist it. Riders who hammer base block are the same riders who plateau in week 8 and crack in the Pla in week 17.
Anchor session: long Z2 ride building from 3 hours to 4.5 hours over the block, with 600-1,000m of climbing. If 4.5 hours conversational pace is impossible at the end of week 4, the back-end of this plan does not work.
Weeks 5-8: Build
Volume: 9-11 hours/week.
Two quality sessions appear: one threshold, one sustained tempo. Long ride climbs to 5.5 hours.
Threshold: 4x10 minutes at 95-100% FTP with 5 minutes easy between, building to 3x15 minutes by week 8. Standard workhorse.
Sustained tempo: 2x30 minutes at 80-87% FTP, ideally on rolling terrain or a sustained climb. The Mallorca 312's middle section is sustained tempo for hours; train the duration you'll race.
Weeks 9-12: Peak
Volume: 12-15 hours/week. The back-to-back work starts.
This is the block that distinguishes the 312 build from a one-day climbing sportive build. By the end of week 10, your weekend is structured: Saturday 5-6 hours with 1,500-2,500m of climbing, Sunday 3-4 hours of tempo on rolling roads. Repeat the structure (with a rest week) at least three times before taper.
Insert one over-distance ride: an 8-hour day, ideally with a similar elevation profile to the 312. Late January or February in Mallorca itself is the perfect time, but a long day on rolling local roads with disciplined fuelling rehearsal serves the same purpose.
John Wakefield's torque work pairs well with this block — low-cadence sustained climbs of 8-12 minutes at 85-90% FTP build the muscular endurance the Tramuntana climbs ask for. One session per week, no more.
Weeks 13-16: Specific + Taper
Weeks 13-14: One final stacked weekend, ideally in Mallorca itself or on terrain that mimics the route shape — climbs early, rolling tempo late. Volume holds at 13-14 hours but the sessions tighten to race-pace simulation. One full fuelling rehearsal — 80-100g carbs/hour, electrolytes, real food at the simulated aid stations — at race pace.
Weeks 15-16: Taper. Volume drops 30% in week 15, another 50% in week 16. Keep short intensity (3x5 minutes at threshold, 4x90 seconds at VO2) to sharpen the legs without adding fatigue. The taper is where most amateurs panic-train. Don't. The fitness is in.
If you build your plan in TrainingPeaks, the structured workouts and ATL/CTL tracking make the back-to-back blocks legible week by week. For an event where the multi-day demand is the defining feature, that visibility matters.
Multi-Hour Nutrition Strategy
The 312 is a fuelling test before it is a fitness test. A 12-hour finish demands 1,000g+ of carbohydrate on the bike, which most amateurs have never eaten in motion. Train it.
On the bike. 80-100g 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 90 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 carb rates when you blend the two sugars. Train your gut to this volume on at least three long training rides before April. The first time you eat 90g/hour should not be on the start line.
Aid stations. The Pollença aid station around km 80 is your second breakfast — eat real food here, not just gels, because the Pla section that follows is a long calorie burn with no shade. Don't sit down. Refill bottles, top up jersey pockets, eat a sandwich, leave inside 10 minutes. Sitting down at km 80 is a mental trap that costs riders 30 minutes plus a recovery curve they can't pay back.
Hydration. 500ml/hour in the cool morning Tramuntana, climbing to 750ml/hour with electrolytes once the heat lands midday. Sodium intake matters more than gel calories in the Pla section — sweat rate at 28°C is double what you'd think. Salt tabs in the bottles, electrolyte mix in everything that isn't a gel.
Pre-race. Carb-loading 24-36 hours out: 8-10g/kg body weight in the 24 hours before. A 70kg rider eats 560-700g of carbs the day before. This is more food than feels normal. Eat it anyway. Riders who roll up to the Mallorca 312 start line with empty glycogen stores DNF before kilometre 250 with predictable consistency.
For the underlying science, the carbs-per-hour guide covers the gut-training and absorption side. For race-day specifics, the race-day nutrition guide walks through the timing.
Common Mistakes
Picking the 312 because you've done other long sportives. Mallorca's distance plus heat is structurally different from a Wicklow 200 or a Marmotte. If your longest ride hasn't crossed 7 hours, the 225km route or the 167km route is the better starting point. There is no medal for a DNF, and finishing the 225 leaves you wanting to come back, not having survived.
Underfuelling the first 80km because the climbing feels easy. The Tramuntana is where you bank the carbs that get you through the Pla. The climbs are the easy part of fuelling because your gut is fresh and the temperature is mild. Riders who 'save' calories on Coll de Sóller bonk between km 180 and km 220 with predictable consistency.
Forgetting that Sa Calobra is a sustained climb, not a return route. If the route includes Sa Calobra, the descent down to the sea is a 10-minute fuelling window — not a rest. Eat on the way down, ride the climb back at 75-80% FTP, and accept it is going to take 50 minutes. Riders who attack the bottom of the return ride the top in pieces, and the day is then a grind.
Treating the Pla as recovery. It isn't. The Pla central plain is rolling tempo that punishes overcooked legs. Sit in groups whenever you can find them; drafting saves 25-30% of your output. The riders solo-grinding into the wind at km 200 are the same riders walking the final 30km.
Underdressing for the dawn start. 06:00 in the Tramuntana shadows is genuinely cold — 8-10°C is normal in late April. A gilet stashed in the jersey pocket and arm warmers from the start are not optional. Riders who roll out in shorts-and-jersey hoping the sun catches them are 30 minutes behind their time targets after the first descent because the first hour was a shiver-fest.
Cutting the long ride. One 8-hour training ride is the bar. Riders who skip it because 'I don't have time on the weekend' show up to the start line guessing about what hours 7-12 feel like, and the guess is almost always wrong. Make the time.
Kit, Gearing, and Logistics
Bike. A road bike with reliable disc brakes if you have them — the Sa Calobra descent and the Puig Major drop are 10-15 minute braking efforts on tired hands by the back half. Tubeless or quality clincher tyres with full repair kit; Mallorca roads are clean by Spanish sportive standards but a flat at km 200 with 100km to go is the day-killer.
Gearing. 34x32 minimum, 34x34 is sensible for the 312 distance. The Tramuntana climbs are 6-8% sustained for 50+ minutes — at hour 8 that gradient feels different than it did at hour 2. Test your gearing on a 7% local hill at the end of a 5-hour ride, not on a fresh-legs 90-minute spin.
Clothing. Two layers visible from the start: jersey plus arm warmers, gilet stashed for the cold descent off Puig Major. Long-finger gloves for the dawn start, fingerless for midday. Sun sleeves are non-negotiable for the Pla section — Mediterranean April UV burns through normal SPF in two hours and a sunburned body is a body that doesn't recover overnight. Reapply sunscreen at every aid station.
Hydration carry. Two bottles minimum, three is sensible for the 60+ kilometre gaps between aid stations late in the day. A small frame pack or jersey-pocket flask with concentrated electrolyte is the difference between hitting the 750ml/hour target and rationing.
Bike fit. A 312km day exposes every fit issue you've been ignoring. Saddle pressure, hand numbness, neck strain — anything you noticed on a 5-hour ride is going to compound at hour 9. Get the fit checked in the final 6 weeks if anything has been creeping up on you. Race day is not the time to discover the saddle is wrong.
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 312, stack a base block into a build block and overlay this article's back-to-back stacked-weekend work in the peak block. 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 16-week 312 build around your starting fitness, your real-life schedule, and the route's specific shape. Generic plans break on this event — the over-distance ride needs to land in the right block, the heat exposure needs to be timed against your local weather, and the gut-training has to be rehearsed before April.
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.
Before you commit to the full 312, the Mallorca 312 event guide has the climb-by-climb breakdown, finish-time bands by W/kg, and the fuelling-and-pacing detail laid out by section. The race predictor takes your current FTP and weight and gives you a realistic finish-time band — useful for setting taper targets and aid-station splits.
The Mallorca 312 rewards riders who treat it like what it is: an ultra-distance event with a mountain stage stuck on the front. Train for it that way and the day is hard, but it is yours. Train for a long sportive and you'll find out what kilometre 220 across the Pla actually feels like the hard way.