Best full-distance triathlons in Switzerland
3 rated races, ranked by an overall score built from racer reviews and race reports. How we rate
3 races
By the numbers
Overall score 4.6Excellent#2 of 116Strong evidence · 12 sources
Water 16–18 °C (61–64 °F)
1. IRONMAN Switzerland Thun
Overall score 4.6ExcellentStrong evidence · 12 sourcesTop 2%#2 of 116 overallThun, Switzerland · IRONMAN · Last race 5 Jul 2026
Racers loveAlpine lake swim with a postcard Niesen backdrop
Watch outLake water of about 16-18 °C (61-64 °F)
“Best organized Ironman race I have done so far.” Andy Florint, Sport Over Fifty
- Water
- 16–18 °C (61–64 °F)
- Air
- 15–30 °C (59–86 °F)
- Bike climb
- 1,906 m (6,250 ft)
- Field
- about 1,600
- Best
- Bike 5.0
- Weakest
- Stay and travel 3.1
2. Swissman Xtreme Triathlon
Ascona (start) to Kleine Scheidegg / Grindelwald (finish), Switzerland
Next race 26 Jun 2027
Overall score 3.8Very good#24 of 116Strong evidence · 10 sources
Water 18–20 °C (64–68 °F)
2. Swissman Xtreme Triathlon
Overall score 3.8Very goodStrong evidence · 10 sourcesTop 18%#24 of 116 overallAscona (start) to Kleine Scheidegg / Grindelwald (finish), Switzerland · XTRI · Next race 26 Jun 2027
Racers lovePoint-to-point from palm-lined Lake Maggiore to the Eiger
Watch outSlot lottery, no deferrals
“went far beyond the limits that I had set” SWISSMAN official - 2013 inaugural report
- Water
- 18–20 °C (64–68 °F)
- Air
- 5–25 °C (41–77 °F)
- Bike climb
- 3,146 m (10,320 ft)
- Field
- about 250
- Best
- Bike 4.2
- Weakest
- Stay and travel 2.4
Overall score 2.8Good#102 of 116Thin evidence · 4 sources
Bike climb 400 m (1,310 ft)
3. Swissultra Single Triathlon
Overall score 2.8GoodThin evidence · 4 sources#102 of 116 overallBuchs (SG), Switzerland · Last race 12 Aug 2025
Racers loveOutdoor 50 m (164 ft) pool swim and short loops: 9.02 km (5.6 mi) bike, 1.22 km (0.76 mi) run
Watch outVery few reviews or race reports exist
- Bike climb
- 400 m (1,310 ft)
- Best
- Stay and travel 4.0
- Weakest
- Race 2.7
About these ratings
Races are ranked by an overall score out of 5, built from racer reviews and race reports, on the race itself, swim, bike, run, conditions and travel. 5 is always the better end. How we rate
Full distance course: 3.8 km (2.4 mi) swim, 180 km (112 mi) bike, 42.2 km (26.2 mi) run.
Reports on full-distance races are scarcer, so 1 of 3 scores are thin evidence: fewer than 5 sources each (dashed score, marked provisional). Show only races with 5+ sources.
26 racer reviews and race reports.
Browse all 3 races, A to Z
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