Frequently Asked Questions
What are the cut off times?
The 100 Mile Event must be completed within 50 hours from the 06:00 Saturday start, while the 100 km Event has a 30-hour cut-off from the 14:00 Saturday start. Runners should plan pacing, nutrition, and rest carefully to meet these cut-offs.
How is the course supported?
The course is supported with checkpoints providing food, drinks, first aid, and guidance throughout the route. Sleep stations are available at designated points, giving runners a safe place to rest and recover during the challenge. Crew support is permitted at specified locations, and the race manual provides details on access, parking, and any restrictions.
Are the routes marked?
The courses follow well-known trails, local paths and country lanes. While the route is marked between checkpoints, runners are required to download the GPX file to a watch or GPS device. Navigation skills are important, particularly where sections can be remote and conditions variable.
Do I need to carry mandatory kit?
All runners must carry essential kit for safety and self-sufficiency on course. This includes trail shoes suitable for the distance and terrain, waterproofs and warm layers, night lighting with backup, a GPS device with the course loaded, a mobile phone, a reusable cup, a survival bag, food for several hours between checkpoints, and a first aid and blister kit. Carrying this kit ensures participants can manage emergencies or adverse weather.
Can I use a drop bag?
Yes. Each runner can have one drop bag (max 120 L/20 kg), which is transported between each and every checkpoint. Make sure it’s waterproof and contains everything you’ll need for sleep station stops.
Is crew support allowed?
Yes, most checkpoints allow crew, but some have limited parking or access restrictions. Check the race manual for specific crew-access points and plan your logistics carefully.
When will I get the race manual?
The official race manual is available by email from 8 weeks before the event and contains all the details you’ll need, from kit lists and checkpoint info to route maps and sleep station guidance. Reviewing it thoroughly before race day is essential.
Can I run with a pacer?
Yes! Pacers are allowed and all support must follow the crew rules in the manual regarding parking, timing, and assistance.
What food and drink is available?
Checkpoints provide a variety of sweet and savoury foods, hot drinks and pop. All items are cupless, so make sure to bring a reusable cup for drinks.
Can I run uncrewed?
Yes, you can complete the event without crew. Checkpoints remain available, though crew can help with food, rest, and logistics if you choose to use them.
How do the sleep stations work?
The sleep stations is provided at a designated checkpoint. You’re responsible for bringing your own sleeping bag, warm layers, and any personal comfort items. They offer a safe place to rest and recharge before continuing.
I haven’t received my confirmation email or can’t find my booking reference. What should I do?
First, please check your spam or junk folder, race info often lands there. If it’s not there, log in to your Let’s Do This account and check your dashboard; your booking reference and event details will be listed there. The organisers also send welcome and update emails at key points before the event, so ensuring your email is correct will help you receive all communications. If you’re still struggling to find your info, reach out to Let’s Do This support at support@letsdothis.com for help.
My address or phone number has changed. What should I do?
That’s easy to fix, just log in to your Let’s Do This account and update your contact details. This ensures you’ll receive the welcome email, pre‑race updates (sent at 8 weeks, 4 weeks, and 2 weeks before the event), and any last‑minute information from the ONA Series team.
Can I add items to my booking at a later date?
Yes, if extras (like a coach transfer, merchandise, or other add‑ons) are still available, you can add them via your Let’s Do This booking dashboard. Just go to “Manage Booking” and choose the add‑on you want. It’s best to do this sooner rather than later because add‑ons can close as race day nears.
How do I transfer my entry to another runner?
If transfers are open for your event, you’ll be able to manage this through your Let’s Do This booking dashboard (within the transfer deadline). If the option is there, you’ll see it in your account.
Can I defer my place?
Yes, you can defer to another eligible ONA Series event as long as you do so at least 28 days before race day and there’s space in the new event. If deferrals are available, you’ll see the option in your Let’s Do This account.
What is your cancellation/refund policy?
If you cannot participate, a 75 % refund of the entry fee will only be given if you notify the organisers in writing 84 days (12 weeks) before the event. After this deadline, entry fees are not refundable. Note that add‑ons (like coach seats) are non‑refundable once booked and separate from the main entry.
Is there a waiting list if the event sells out?
If the event sells out, you can join a waiting list via the Let’s Do This event page, spaces often open up if others defer or cancel. Check the event page for the waiting list link if the race shows as full.
Is there live tracking?
Yes, the event does provide live tracking for runners! Each participant receives a tracker at the start of the race, and family and friends can follow progress online during the event. The tracking link is usually shared the day before the race begins.
Is accommodation provided the night before the 100s?
Accommodation is not included with entry unless explicitly offered as part of a package during registration. Runners must arrange their own stay for the night before the race.
Sponsors of the Sirona 100
