Dalby's Inferno

JUN
6
2026
Dalby's Inferno is a backyard ultra marathon in the forest, challenging runners to complete as many 5.5 km loops as they can within ten hours. Your entry includes camping for two nights and supports mountain rescue. It's a unique test of endurance in a scenic setting.
55 kilometers 6 kilometers

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Event Overview

Dalby's Inferno is a backyard-style ultra marathon held in Dalby Forest. The 2026 edition will be the sixth year of the event. The format involves completing a trail loop repeatedly within set time limits.

Course and Format

The event consists of 10 laps of a 5.5 km forest trail loop, totaling 55 km. Each lap starts on the hour. Participants have one hour to complete each lap to be eligible to start the next one. Those who finish all 10 laps complete an ultra marathon distance.

Event Details

The entry fee covers race entry, free vehicle entry into Dalby Forest, and two nights of camping (Friday and Saturday) at the Adderstone campsite. The campsite is near the start/finish area, approximately 100 meters away, and includes toilets and fresh water. Hard-standing is available for campervans. Hot food and drinks are available for purchase on the day.

Registration is available on Friday evening or Saturday morning. The race starts strictly at 9:00 AM. There is no age limit, but the minimum age to participate is 16 years. Dogs are not allowed on the run but may camp if well-controlled.

A pre-order option for a technical T-shirt is available when entering online, with a cut-off date for orders.

Important Notes

The specific route will not be published before the event day. There are no deferrals or refunds offered, though participants may purchase separate refund protection. The event raises funds for the Scarborough & Ryedale Mountain Rescue Team. Visit the organization's website for the most recent information.

55 km
Total Distance if All Laps Completed
6 km
5.5 Km Lap