Trail RunningUTMB Index RacesUTMB World Series

Ultra-Trail Snowdonia Eryri by UTMB

Trail Running covering 25 km to 163 km with up to 9,200 m D+ in Caernarfon (Wales, United Kingdom)

LocationCaernarfon, Wales, United KingdomShow on map(53.1396° N, 4.2739° W)
Date & StatusDate to be announcedDate TBA
Elevation gainUp to +9,200 m

Ultra-Trail Snowdonia Eryri by UTMB is an endurance sporting event in Caernarfon, Wales, GB focused on Trail Running. It is part of UTMB Index Races, UTMB World Series. Key features include Mountain, Lakes & Ponds, Nature & Off-Road, Forest.

The race program comprises 5 competitions, including UTS 100M (163 km, +9,200 m D+), UTS 100K (100 km, +4,400 m D+), UTS 80K (78 km, +2,500 m D+), UTS 50K (56 km, +3,400 m D+), and ERYRI 25K (25 km, +1,400 m D+). The exact date for the next edition is currently open and will be announced by the organizer. Official race regulations, course details, and registration information are provided on the organizer's website (snowdonia.utmb.world).

Official website
Ultra-Trail Snowdonia Eryri by UTMB in Caernarfon (Work: "Buttermere Fell and High Crag", Photo: Anthony Parkes, License: CC BY-SA 2.0, Source: Wikimedia Commons)
"Buttermere Fell and High Crag" · Photo: Anthony Parkes · Wikimedia CommonsCC BY-SA 2.0
Cropped to 16:9 (960 × 540 px), WebP · Shared under the same license

Event characteristics

MountainLakes & PondsNature & Off-RoadForestHigh AltitudeMulti-Day

Races & distances (5)

CompetitionDisciplineDistanceElevation gainAltitude rangeCourse typeCourse & profile
UTS 100MTrail Running163 km+9,200 m2 m - 3,866 mLoop courseRoute & profile
UTS 100KTrail Running100 km+4,400 m5 m - 1,853 mLoop courseRoute & profile
UTS 80KTrail Running78 km+2,500 m8 m - 1,058 mLoop courseRoute & profile
UTS 50KTrail Running56 km+3,400 m11 m - 1,439 mLoop courseRoute & profile
ERYRI 25KTrail Running25 km+1,400 m14 m - 602 mLoop courseRoute & profile
Course & Elevation Telemetry

Course route & map

Distance
163 km
Elevation gain
+9,200 m D+
Elevation loss
-9,200 m D-
Altitude range
2 m - 3,866 m
Gradient (Avg / Max)
11.3 % / 20.3 %
Course format
Loop course
163 km+9,200 m D+
Start (S)Finish (F)
N255075100125150FS53.1396° N, 4.2739° W

Elevation profile & course telemetry

Altitude from 2 m to 3,866 m above sea level (+9,200 m D+, -9,200 m D-)

Peak: 3,866 m·at 76.2 km·Ø 11.3 %
2 m1,290 m2,578 m3,866 m0 km32.6 km65.2 km97.8 km130.4 km163 km3,866 m
Event Information & Answers

Frequently asked questions (FAQ)

When and where does Ultra-Trail Snowdonia Eryri by UTMB take place?

Ultra-Trail Snowdonia Eryri by UTMB takes place in Caernarfon, Wales, GB (start area at coordinates 53.1396° N, 4.2739° W). The exact date for the next edition is currently open and will be announced by the organizer.

What races and distances are offered at Ultra-Trail Snowdonia Eryri by UTMB?

The race program comprises 5 competitions, including UTS 100M (163 km, +9,200 m D+), UTS 100K (100 km, +4,400 m D+), UTS 80K (78 km, +2,500 m D+), UTS 50K (56 km, +3,400 m D+), and ERYRI 25K (25 km, +1,400 m D+). The competitions belong to Trail Running.

What is the course layout and elevation profile for Ultra-Trail Snowdonia Eryri by UTMB?

The main competition (UTS 100M over 163 km) is designed as a loop course featuring +9,200 m of elevation gain and -9,200 m of elevation loss, ranging between 2 m and 3,866 m above sea level. An interactive course map with route visualization, elevation profile, and GPX export is available in the course section on this page.

Where can I find registration and official race rules for Ultra-Trail Snowdonia Eryri by UTMB?

Official race regulations, course details, and registration information are provided on the organizer's website (snowdonia.utmb.world).