DateExpected
Late August 2027
Based on past editions. We'll confirm when the organiser announces.
Venue
Unterwasser, Toggenburg
Unterwasser, Wahlkreis Toggenburg
Countdown
August
The big one of the Churfirsten day: a trail marathon with almost 2,900 m of climbing, so expect a long day on steep ground, not a fast road-style 43 km.
Create a free training plan for the Churfirsten Trail Run 43 km
7-day free trial, no card required
The course
The route
Unterwasser
Distance43km
Total climb2,910m
StartElevation
0 kmDrag map to rotate39.4 km
Weather
Late-August, Unterwasser
19°CTypical high
8°CTypical low
0°CColdest in 20 years
52%Days with rain
Highs around 19°C and lows around 8°C, but it has dropped to 0°C. Rain on 52% of days. Pack for the cold end, not the average.
NASA POWER data, 2006-2025, the week either side of race day
2026 results
Who finishes, and how
#RiderTimeAvg speed
01Lisa MADLENER05:29:197.9 km/h
02Sophia LEHMANN05:48:247.5 km/h
03Sabrina ROOST06:02:417.2 km/h
42
Women finishers
7:36:47
Median time
5.7 km/h
Median speed
Women · 2026 results, as published by the organiser.
How fast could you finish?
Get a prediction based on your recent training
Organiser
OrganiserChurfirsten Trail Run OK (Fabian Lehner, President)
Websitechurfirstentrailrun.ch
Instagram@churfirstentrailrun
Running since2025
Training
Training for the Churfirsten Trail Run 43 km
We don't do generic plans. We combine deep knowledge of this race's demands with your recent training, then build a plan with you that progresses as you do.
Beina integrates directly with your existing tools to understand your current fitness, and synchronise your planned sessions.
Intervals.icuWhat a Churfirsten Trail Run 43 km plan targets
Typical sessions
43 km with 2,910 m of climbing
Time on feet and fatigue resistance
Fuelling and pacing for the whole event
What your weeks look like
Typical sessions
Long runs that build time on your feet
Tempo and threshold sessions to hold race pace
Hill reps and vert to prepare the climbs and descents
Back-to-back weekend runs for fatigue resistance
Not a generic schedule
Typical sessions
Built from your current fitness and the time you actually have
Adapts every week as Beina learns how you respond
Syncs your sessions straight to Garmin and Wahoo
One clear next session, never a wall of spreadsheet
Entries open now
Get your Churfirsten Trail Run 43 km plan.
7-day free trial, no card required.
Other races at Churfirsten Trail Run
More events in August in Switzerland
Scenic 250Expected Early August 2027 · Ticino→Sierre-ZinalSat, 7 Aug 2027 · Zinal→Madrisa Trail KlostersFri, 13 Aug 2027 · Klosters→Eiger Bike-ChallengeSat, 14 Aug 2027 · Grindelwald→TREK® Matterhorn UltraksExpected Mid August 2027 · Zermatt→Grand Raid BCVSExpected Late August 2027 · Verbier → Grimentz→
