Event Information

The hilliest and hardest race in the snails series!

Congratulations, you’ve found an excuse to sneak an extra race into your calendar – only this time it won’t affect your weekend plans… Come and experience our multi-award winning midweek trail run – which we’re told is best celebrated with a sunset Aperol Spritz from our Horsebox Gin Bar! A popular choice for those who like to squeeze an extra run in after work, this sell-out event offers challenging  5km, 10km and 15km Trail Runs. This event showcases some of the most spectacular scenery offered by the Surrey Hills Area of Outstanding Natural Beauty; setting off along the Pilgrim’s Way over the North Downs, runners continue across to Newlands Corner, weave through the majestic Chantries Woodland and climb the breathtaking (but rewarding) incline to the peak of St Martha’s – where it is possible to enjoy panoramic views of up to 7 counties.

All participants are rewarded with a large snail medal.

Event Manager: Fliss

Hey, I’m the Event Manager for Hardassnails. Please feel free to contact me if you have any questions about this event, or follow me on Instagram to check out all the behind-the-scenes action!


Kyra's favourite aat: event

love the snail medal – it’s my favourite!

I’m usually the tail runner for this run – I love keeping everyone at the back of the pack motivated and happy. Looking forward to seeing you all there.

Event Information


Hilly trails through the woodlands and countryside of the North Downs.

Route links coming soon!


Shalford Park, GU4 8AA

Free parking, toilets and registration (race number collection) are at Shalford Park. The start line is a short walk away, which will be clearly signposted.

🚲 Travel

We strongly recommend cycling, walking or running to the event. Shalford Park is a short walk from Guildford town centre and is approximately a 1-mile walk from both Guildford and Shalford train stations.


Surrey Fox Ultra Marathon Half Relay Trail Run

🅿️ Parking

There is parking available at Shalford Park.

Please only share a lift with members of your household or bubble.

ℹ️ Registration

Collect your personalised race number (with integrated timing chip) from Shalford Park on event day. The start line is a short (signposted) walk away.


🎒 Bag Drop

Please where possible leave your baggage in the car. We will have a small self-service bag drop, where you can leave layers and car keys if required. We do not accept responsibility for loss or damage.

Bag Storage

🚽 Toilets

Please use the public toilets at Shalford Park.

🗒️ Event Programme

Registration details will be confirmed here and communicated to all entrants by email.

Please note that race start times may be staggered, to ensure social distancing. Updated information will be posted here. 

📲 Instant Results

Provide us with your mobile number during online registration, so we can text you your finish time as soon as you cross the line.

👟 Recommended Kit

Earphones: If you choose to use earphones, we recommend using Aftershockz bone-conducting earphones at an appropriate volume. You must be aware of your surroundings and be able to hear marshalls at all times.
Trainers: We recommend wearing a comfortable pair of trail shoes. Fitstuff offer a free professional shoe-fitting service to ensure that you get the perfect pair.
Socks: For maximum comfort – and to avoid getting blisters – ensure you wear a proper pair of running socks. aat events recommend Hilly Socks.

ℹ️ Other Information

We are continuously reviewing the covid-19 guidance and national situation.

All participants will be asked to complete an online health declaration form to confirm that they do not have any symptoms of covid-19. This will be checked on entry to the event, to ensure that all participants have completed the form.

Spectators will not be permitted entry into the event village. This is to ensure that we can maintain social distancing at all times.

🏅 Medals

All finishers will be rewarded with a bespoke, snail-shaped medal at the finish line!

Hardassnails Medal

🍹 Greenhill Gin Bar

Treat yourself to a post-race gin and tonic or soft drink, thanks to Greenhill mobile gin bar.