ARC 50 2026

January 24, 2026

Distance

80.8 km

Elevation gain

2491 m

Country

🇬🇧 United Kingdom

Download the GPX Official race website

Course weather at your time of passage

The forecast arrives five days before the start.

Here you'll find the elevation profile, an estimated finish time based on your UTMB Index and details of the 6 aid stations to plan your nutrition and hydration segment by segment.

What's your time based on your UTMB?

Times estimated by the RAVIT model, learned from real ultra-trail finish times. Enter your UTMB Index (utmb.world) to get a personalized estimate.

Predicted race time based on your UTMB Index® · smoothed times achieved by runners at your level in past editions

UTMB Index®

Peaking10h42

Normal day

at this level, the finish comes down to the cut-off time (16h37)

from Peaking (P10) to Survival mode (P90)extended based on 209,157 finishers from 222 racesCalibrated UTMB® points

Source

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Cut-off times and crew - ARC 50 · 2026

81 km race checkpoints: kilometers, elevation, crew, cut-off time and access
Aid station	Cum. km	Seg. km	Seg. D+	Seg. D-	Crew	Cut-off
Land's End	7.6	7.6	301 m	267 m	Forbidden	Sat 11:35 AM
Pendeen	23.6	16.0	448 m	455 m	Forbidden	Sat 02:20 PM
Lelant	51.2	27.7	1,000 m	1,083 m	Forbidden	Sat 07:45 PM
Godrevy	61.8	10.6	118 m	118 m	Forbidden	Sat 09:40 PM
Portreath	73.6	11.7	298 m	296 m	Forbidden	Sat 12:00 AM
Porthtowan	80.8	7.2	292 m	200 m	—	—

Data from the official race rules, checked for every edition. The race rules prevail. Positions are interpolated along the GPX track and are a guide, not official course marking.

What you'll find at each aid station

Aid station contents: products in rows, aid stations in columns
Product	Land's Endkm 7.6	Pendeenkm 23.6	Lelantkm 51.2	Godrevykm 61.8	Portreathkm 73.6	Porthtowankm 80.8
Water	available	available	available	available	available	available
Brand products · Näak	unavailable	available	unavailable	available	unavailable	unavailable
Hot meal	unavailable	unavailable	available	unavailable	unavailable	unavailable

La feuille de ton assistance pour ARC 50 · 2026

L'assistance n'est autorisée sur aucun poste de cette course.

Elevation profile

The course and its aid stations

Loading track…

GPX

ravit.live

ARC 50: times, aid-station stops and fuelling needs by UTMB® Index

Between a UTMB® Index of 500 and 800, the estimated finish time on this race runs from 13h05 to 7h54, and the aid-station stop budget from 0h14 to 0h05. The longer the race, the more stops weigh: this is time you should plan to spend standing still, not only running.

Source

Below a UTMB® Index of roughly 355, the overall cut-off of 15h30 is no longer reachable at the estimated pace.

Estimated time, stop time and fuelling needs on ARC 50 by UTMB Index
UTMB® Index	Estimated time	Of which stops	Night hours	Carbs	Fluid	Sodium	Cut-off margin
500	13h05	0h14	1.1	785 g	9.2 L	6,542 mg	+2h25
550	12h03	0h13	0.1	723 g	8.4 L	6,025 mg	+3h27
600	10h54	0h11	—	654 g	7.6 L	5,450 mg	+4h36
650	10h15	0h10	—	615 g	7.2 L	5,125 mg	+5h15
700	8h57	0h07	—	537 g	6.3 L	4,475 mg	+6h33
750	8h29	0h05	—	509 g	5.9 L	4,242 mg	+7h01
800	7h54	0h05	—	474 g	5.5 L	3,950 mg	+7h36

Figures based on 60 g of carbohydrate, 700 mL of fluid and 500 mg of sodium per hour, "average" preparation and mild conditions (15–25 °C). Above 25 °C, count on roughly 900 mL/h and 700 mg/h. Carbohydrate intake is trained: 60 g/h is a floor, 90 g/h assumes a glucose-fructose blend and a gut used to it.

Other trails worth preparing for

Sources and method

Time projection — times by UTMB Index are taken from the actual splits of runners in each level band on previous editions of this race, aid station stops included. No formula is used as long as these results exist.
Trail nutrition — hourly targets for carbohydrate, fluid and sodium follow the commonly accepted ultra-endurance guidance. La Clinique du Coureur — Fuelling in trail running
Course, aid stations and cut-offs — taken from the event's official rules, which prevail in case of any discrepancy. Official site — ARC 50

Weather for ARC 50

The weather for ARC 50 will appear here as soon as the forecast models reach that date, around five days before the start: feels-like temperature, rain, snow, wind and storms, section by section and at your passage time.

Detailed weather for ARC 50, hour by hour on the course

Frequently asked questions

How many checkpoints?

ARC 50 has 6 checkpoints: 3 aid stations and 3 water points. Details are in the two tables above.

What's the longest segment without aid?

The one leading to Lelant: 27.7 km and 0 m elevation gain. That's the one to load up for first.

How do I find the exact location of an aid station?

The Google Maps icon in the “Access” column opens the aid station's location: handy for planning your crew's routes.

What distance and elevation gain?

ARC 50 is 81 km long with 2491 m of elevation gain.

How long to finish?

With a UTMB Index of 600 (average runner), the estimated time is around 10h54 for ARC 50.

What's the weather forecast?

The weather for ARC 50 will be published on this page around five days before the start, once the forecast models reach the race date. It will be detailed section by section: feels-like temperature, rain, snow, wind and storms.

Want to stack the odds in your favor for ARC 50?

In 2 minutes, RAVIT generates your complete plan: segment-by-segment time, carbs, water and sodium at every aid station, printable roadbook.

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