AlpsMan Ponte di Legno by The Stone (formerly The Stone Xtrem / StoneBrixiaMan)
Iseo / Ponte di Legno, Italy · June · AlpsMan family (AlpsMan + TriO Events)
Latest edition: Run since 2016 as StoneBrixiaMan, then The Stone; 2026 edition (27 Jun) rebranded as AlpsMan Ponte di Legno by The Stone with a new Half. Annecy AlpsMan Xtreme was cancelled in 2026. Bike 175-180 km (sources vary), run 38.5 km trail, so not a standard 42.2 km marathon.
Why people love it
- Finish at Passo Paradiso, 2,600 m (8,530 ft), with a porphyry stone for finishers
- Mortirolo (1,852 m (6,080 ft) / 6,076 ft) and Gavia (2,621 m (8,600 ft) / 8,599 ft) on the bike
- 4 am swim across Lake Iseo by lit buoys after a boat transfer
- Small field with strong local backing
Watch out for
- Run is 38.5 km (23.9 mi) of trail, not a full 42.2 km (26.2 mi) marathon
- Strict 18:30 Ponte di Legno checkpoint; 17 missed it in 2026
- Only about 30% of 2026 full-distance entrants finished (60 of 200)
- Swim and finish are in different towns, with a boat transfer
- Recent rebrand and new organiser partnership; format may keep changing
Race
How racers feel about it, how well it is run, and how it treats a first timer. Counts for 27% of the overall score.
- Racer satisfactionLoved4.0
The 2026 winner called it the hardest and most beautiful race he had done. Independent reviews are few, and only about 30% finished in 2026. · Low confidence
- OrganizationAdequate3.4
A complex point-to-point with a 2026 rebrand to AlpsMan and a new half. The Annecy edition was cancelled and 17 athletes missed the checkpoint. · Low confidence
- First timer friendlyExperts only1.0
An extreme alpine event with a strict 18:30 checkpoint. Only 60 of 200 started finished the full in 2026. · High confidence
Course traits, not part of the score
- PR potentialVery slow1.0
About 4,100 m (13,450 ft) of climbing and a 38.5 km (23.9 mi) dirt trail run finishing at 2,600 m (8,530 ft). Winners took 13:22-14:12. · High confidence
- Course easeExtreme1.0
Mortirolo and Gavia, 4,100 m (13,450 ft) of bike climbing, then 2,200 m (7,200 ft) of trail ascent to 2,600 m (8,530 ft). · High confidence
Swim
Wetsuit odds, water temperature, calm, and the experience of the start. Counts for 15% of the overall score.
- Wetsuit legalUsually4.0
Lake Iseo in late June is typically 20-23 °C (68-73 °F). The rule is not published, so a wetsuit is likely legal. · Low confidence
- Water temperatureComfortable4.3
Late-June Lake Iseo is probably 20-23 °C (68-73 °F) at the 4 am start. Not officially published. · Low confidence
- Calm waterSome chop2.6
The 2026 swim was windy with lake current, and one woman struggled in the water. · Low confidence
- Swim easeModerate2.7
A 4 am start with lit-buoy navigation of a straight crossing, with wind and current reported in 2026. · Low confidence
- Swim experienceGreat3.6
A boat transfer and 4 am start across Lake Iseo by lit buoys is memorable, but dark, with wind and current in 2026. · Low confidence
Bike
Road surface, closures, scenery and wind. Counts for 19% of the overall score.
- Road surfaceMixed3.0
Public Alpine roads of mixed quality, with rough sections high on Gavia and Mortirolo. · Low confidence
- Road closuresPartly closed2.8
Open public roads in Val Camonica and over the passes. Closures were not verified. · Low confidence
- Bike scenerySpectacular4.6
Gavia (2,621 m (8,600 ft) / 8,599 ft) and Mortirolo (1,852 m (6,080 ft) / 6,076 ft) in the Lombard Alps. · Medium confidence
- WindSome wind3.0
The 2026 edition had notable wind, and the high passes are exposed. · Low confidence
Course traits, not part of the score
- Bike speedVery slow1.0
Roughly 175-180 km (109-112 mi) with 4,100-4,300 m (13,450-14,100 ft) of climbing over Aprica, Mortirolo and Gavia. · High confidence
- Bike flatnessMountainous1.0
About 4,100 m (13,450 ft) of gain, well above the 2,500 m (8,200 ft) mark for a mountainous bike. · High confidence
- Bike simplicityTechnical1.8
Steep, technical descents off Mortirolo and Gavia. A broken wheel on the return was reported. · Low confidence
Run
Crowds, aid stations, conditions underfoot and scenery. Counts for 13% of the overall score.
- Crowd supportDecent3.3
Big crowds in Ponte di Legno and at the finish, with remote stretches elsewhere. · Low confidence
- Aid stationsStandard3.0
Standard aid stations. No detailed athlete reports. · Low confidence
- Run scenerySpectacular4.7
38.5 km (23.9 mi) of dirt trail from 1,200 m (3,940 ft) to 2,600 m (8,530 ft) near the Presena glacier. · Medium confidence
- Run conditionsBrutal1.0
Rocky dirt trail climbing to 2,600 m (8,530 ft) after a huge bike. Winners called the run very hard. · High confidence
Course traits, not part of the score
- Run flatnessBig climbs1.0
2,200 m (7,200 ft) of ascent over 38.5 km (23.9 mi). · High confidence
Conditions
Air temperature, how predictable the weather is, setting, and spectating. Counts for 15% of the overall score.
- Air temperatureWarm or cool2.6
Valley heat in 2026 and cold at the 2,600 m (8,530 ft) summit, with big swings from 4 am swim to evening finish. · Low confidence
- Weather reliabilityVariable2.6
The 2026 race had extreme heat, wind and lake current. The high-Alpine finish adds storm and cold risk. · Low confidence
- Venue beautyLovely4.4
From Lake Iseo to the Presena glacier. The setting is dramatic but split across two locations. · Medium confidence
- Spectator friendlySome viewpoints2.7
The course spans about 100 km (60 mi) from Iseo to Ponte di Legno, and viewing is mainly in Ponte di Legno. · Low confidence
Course traits, not part of the score
- Low altitudeHigh altitude1.2
T2 is at about 1,200 m (3,940 ft) and the finish at 2,600 m (8,530 ft). · High confidence
Stay and travel
Hotels, walkability, getting there, and the town around the race. Counts for 11% of the overall score.
- Hotel availabilityGood3.8
Small field, and Iseo and Ponte di Legno are tourist towns with plenty of beds. · Low confidence
- Hotel valueGood3.5
Italian mountain and lake resort pricing. No race-specific data. · Low confidence
- WalkabilityMostly driving1.8
Swim and T1 are at Lake Iseo, while T2 and the finish are in Ponte di Legno. A boat transfer is needed. · Medium confidence
- Travel easeOne connection2.8
Fly to Milan Bergamo or Malpensa, then drive roughly 1.5-3 hours to Iseo or Ponte di Legno (unverified). · Low confidence
- LogisticsComplex1.4
Boat to the swim start, split transitions, T2 and finish in another town, and a bag and transport plan needed. · Medium confidence
- Town and foodGood3.8
Italian lakeside and mountain towns with good food. · Low confidence
Key facts
- Location
- Iseo / Ponte di Legno, Lombardy (Brescia), Lake Iseo and Val Camonica, Italy
- Typical month
- June
- Latest or next date
- 25 June 2027
- Organiser
- AlpsMan family (AlpsMan + TriO Events)
- Field size
- About 200 athletes
- First held
- 2016
- Distances
- 3.8 km (2.4 mi) swim, 180 km (112 mi) bike, 42.2 km (26.2 mi) run
- Cutoffs
- Swim 2:20 (6:20 at Iseo transition, 4:00 start), Finish 24:00 (Ponte di Legno run checkpoint 18:30)
- Swim venue
- Lake Iseo (Predore to Iseo shore) (lake)
- Swim start
- mass, 4:00 am, boat transfer to start
- Swim laps
- 1
- Bike climbing
- 4,100 m (13,450 ft)
- Key climbs
- Aprica (1,176 m); Mortirolo (1,852 m); Gavia (2,621 m)
- Run climbing
- 2,200 m (7,220 ft)
- Altitude
- 1,200 m (3,940 ft)
- Nearest airport
- Milan Bergamo / Milan Malpensa (distance not verified)
- Where to stay
- Iseo (pre-race), Ponte di Legno (finish)
- Booking
- Swim/T1 on Lake Iseo and T2/finish in Ponte di Legno are far apart.
What racers and reviewers say
- Mondo Triathlon (Dario 'Daddo' Nardone)Raced 2021 · blog · Positive
Italian write-up of the fourth edition: 83 of 130 starters finished. Describes boat transfer, 4am swim by lit buoys, 175 km (109 mi) bike with about 4,300 m (14,100 ft) over Aprica, Mortirolo and Gavia, and a run ending with roughly 7 km (4.3 mi) of dirt trail to Passo Paradiso. Notes big crowds in Ponte di Legno and emotional family finishes; a 58-year-old finisher framed it as Inferno to Paradise.
- Sport SenatorsRaced 2021 · article · Positive
Race recap with athlete comments. Winner Tom Pagani called it the hardest and most beautiful race he had done; his toughest moments were the Gavia and a broken wheel on the return. Notes TriO Events organisation, boat to the swim start, crowds at Ponte di Legno and 6,000 m (19,700 ft) total ascent.
- Radio Bruno BresciaRaced 2026 · article · Mixed
2026 recap of the AlpsMan Ponte di Legno by The Stone edition: 60 of 200 finished the full distance and 33 the new Half. Heat, wind and lake current made it hard; 17 athletes missed the Ponte di Legno checkpoint and took the lower finish. Winners called the race fantastic but the rocky run very hard; one woman struggled in the windy swim, the Half winner called the heat extreme.
Sources
Pages we used for facts and ratings. See how we rate.
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