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Events
WALRunningTrail (provisional)101.1K · 101.1 km / 62.8 mi101.9K · 101.9 km / 63.3 mi103.8K · 103.8 km / 64.5 mi104.6K · 104.6 km / 65.0 mi104K · 104 km / 64.6 mi106K · 106 km / 65.9 mi84.6K · 84.6 km / 52.6 mi86.2K · 86.2 km / 53.6 mi

Ultra-Trail Snowdonia by UTMB® — UTS 100K

Llanberis, Gwynedd · WAL

No future date listed
Calendar

About Ultra-Trail Snowdonia by UTMB® — UTS 100K

Ultra-Trail Snowdonia by UTMB® — UTS 100K is a running event in Llanberis, Gwynedd, Wales. Recorded disciplines include 101.1K, 101.9K, 103.8K, 104.6K, 104K, 106K, 84.6K, 86.2K. The listed surface is trail (provisional). No future date is currently listed on ATHRECS. The ATHRECS archive includes editions from 2018 to 2026. This describes the editions recorded here, not the event's founding date or complete history.

Dates, starts & entry

Times are local to the race. Select the entry route for your distance.

The next date has not been announced here. Check the race website for updates.

Location & race day

Listed venue / area

Llanberis, GwyneddWAL

Find this location on a map

Confirm the exact start line, parking and arrival instructions with the organiser. A listed town or postcode may cover a wider area.

About the race

Historical course record. Trail classification is provisional, based on inclusion in the UTMB Index; course surface has not been independently verified. Actual course distances are retained separately from UTMB Index categories.

Surface:
Trail (provisional)

Results

Public-figure or athlete-approved ATHRECS results, plus verified organiser links.

8 editions

Sat, 16 May 2026

106K · 106 km / 65.9 mi
Results · utmb.world

Sat, 17 May 2025

104.6K · 104.6 km / 65.0 mi
Results · utmb.world

Sat, 11 May 2024

103.8K · 103.8 km / 64.5 mi
Results · utmb.world

Sat, 13 May 2023

104K · 104 km / 64.6 mi
Results · utmb.world

Sat, 2 Jul 2022

101.1K · 101.1 km / 62.8 mi
Results · utmb.world

Sat, 11 Sept 2021

101.9K · 101.9 km / 63.3 mi
Results · utmb.world

Sat, 11 May 2019

84.6K · 84.6 km / 52.6 mi
Results · utmb.world

Sat, 12 May 2018

86.2K · 86.2 km / 53.6 mi
Results · utmb.world

Past races

106K · 106 km / 65.9 miFinishedResults

Sat, 16 May 2026

Historical UTMB source record. Trail classification provisional. Ascent 5400 m. UTMB Index category 100K is not the course distance.

104.6K · 104.6 km / 65.0 miFinishedResults

Sat, 17 May 2025

Historical UTMB source record. Trail classification provisional. Ascent 6460 m. UTMB Index category 100K is not the course distance.

103.8K · 103.8 km / 64.5 miFinishedResults

Sat, 11 May 2024

Historical UTMB source record. Trail classification provisional. Ascent 6503 m. UTMB Index category 100K is not the course distance.

104K · 104 km / 64.6 miFinishedResults

Sat, 13 May 2023

Historical UTMB source record. Trail classification provisional. Ascent 6590 m. UTMB Index category 100K is not the course distance.

101.1K · 101.1 km / 62.8 miFinishedResults

Sat, 2 Jul 2022

Historical UTMB source record. Trail classification provisional. Ascent 6820 m. UTMB Index category 100K is not the course distance.

101.9K · 101.9 km / 63.3 miFinishedResults

Sat, 11 Sept 2021

Historical UTMB source record. Trail classification provisional. Ascent 6660 m. UTMB Index category 100K is not the course distance.

84.6K · 84.6 km / 52.6 miFinishedResults

Sat, 11 May 2019

Historical UTMB source record. Trail classification provisional. Ascent 5020 m. UTMB Index category 100K is not the course distance.

86.2K · 86.2 km / 53.6 miFinishedResults

Sat, 12 May 2018

Historical UTMB source record. Trail classification provisional. Ascent 5480 m. UTMB Index category 100K is not the course distance.

More running nearby

Fri

14

May

2027

Eryri by UTMB®

Llanberis, GwyneddWAL

100K / 100M / 20K / 50K / Ultra· Trail

Eryri by UTMB® — an official UTMB World Series Event.

UTMB World Series Event

Start time TBC

Entries open

Details & entryRace website