Chilterns

2026 Winter Adventure Race

• Last Updated: Tuesday 10 February 2026

We look forward to seeing you all on Saturday for the fourth and final race of our 2025/26 Winter Adventure Race Series!

Event base: Maiden Erlegh Chiltern Edge School, Reade’s Lane, Sonning Common, RG4 9LN. Please note, there is another Maiden Erlegh school half an hour away in Reading – make sure you navigate to the right place!

For those who have not raced with us before, we have put together this short video to give you a bit more information on what to expect (if viewing on a mobile device it works best when opened to full screen mode).

At the moment, the forecast is looking dry and sunny for Saturday, however the area has had rain every day for the last 30 or so days so expect to encounter at least a bit of mud! It is always recommended that you check the forecast on the morning of the event so you know what to expect. As always with racing at this time of year, we would recommend packing a waterproof and extra layers just in case.

We will be carrying out spot checks on mandatory kit before the start so please ensure that you are carrying all required kit with you. You can check the kit list here.

Start lists will be updated here and emailed out on Thursday.

We look forward to seeing you in Sonning Common on Saturday for a day of adventure!

Kim and Joe

Please read all the accompanying notes below which provide further important details.

Chilterns Race Day Information

All the race-specific information that you need for a successful race can be found here.

Regular Race Information

All our regular race information can be found here. This information is the same for all Winter Series events.

Race Numbers

Start lists will be added here on Thursday.

Event Timing

Your start time is based on which course you are doing, see below. You can start at any time within your suggested start time window just make your way to the big blue start arch when you’re ready to start. Your race time (2/3/5 hour time limit) begins when you dib the start control and receive your checkpoint descriptions.

Course Notes

The layout of the course is such that:

• The transition point for the run and bike is located at the event base
• You can start on either bike or foot
• You can run and bike as many times as you like (i.e. you can run-bike, run-bike-run, etc)

How long you spend running and biking is up to you. But if you’ve never done a Questars Adventure Race, it can be difficult to know how long to run / bike for. As a rough rule, we would recommend the following (this can obviously be tailored depending on your preferred discipline):

Duo Full: 2 to 2.5 hours running; 2.5 to 3 hours mountain biking (within the 5 hour time limit)

Duo Taster: 1 to 1.5 hours running; 1.5 to 2 hours mountain biking (within the 3 hour time limit)

The above is a guide, the great thing about Questars races is that what you do is up to you! If you like running, you can spend more time running and less time biking (and vice versa).

Equally, you do not need to use all of your time limit. If you have had your fill of adventure after a couple of hours then you can join us back at HQ for food, drink and to share stories of your navigation successes and failures!