The Maverick X Series Chilterns 2025

Saturday 19 July 2025

more info

The Maverick X Series Chilterns 2025

Saturday 19 July 2025 | Stonor Park

This event has sold out. On the day entries will NOT be accepted.

Our X Series Chilterns sets off five brand new trail running routes from the 850-years old Manor House of Stonor Park. The estate is home to one of the most ancient deer herds in Britain, so keep your eyes peeled for the graceful fallow deer that have grazed here since medieval times. Out on the trails if you’re lucky you may also spot the rare red kite, which have successfully been saved from national extinction in the area.

All routes weave through the estate and surrounding Chilterns Area of Outstanding Natural Beauty. However it’s not all a blissful fairy-tale or a chance to spot rare wildlife, there are some ferocious trails to negotiate, with climbs and descents reaching gradients of 22% in parts. You’ll need your head firmly focused on the task ahead to get through some parts of this event.

This event has sold out. On the day entries will NOT be accepted.

LOCATION

Stonor Park,
Henley-on-Thames,
Oxfordshire,
RG9 6HF

ROUTES

Ultra: 52 km
Long: 42 km
Middle: 22 km
Short: 12 km
Sprint: 7 km
See Route Info

DETAILS

Registration: 7:00am
Start time:
Ultra: 08:00am
Long: 08:30am
Middle: 09:00am
Short & Sprint: 09:30am

DIFFICULTY

Undulating with some punchy hills, woodland and winding trails, suited to all levels of trail runner.
More Info

The Route

ULTRA ROUTE

GPX

Distance: 52 km

Elevation Gain: +1214 m

LONG ROUTE

GPX

Distance: 42 km

Elevation Gain: +1011 m

MIDDLE ROUTE

GPX

Distance: 22 km

Elevation Gain: +517 m

SHORT ROUTE

GPX

Distance: 12 km

Elevation Gain: +244 m

SPRINT ROUTE

GPX

Distance: 7 km

Elevation Gain: +99 m

ONLINE MAP DOWNLOAD INFO MAVERICK RACE RUNNER CODE OF CONDUCT

Official Retail Partner of Maverick Race

Pro:Direct Running and Maverick Race are collaboratively working together to bring a curated and guided range of the best Trail running products to Maverick runners. With Trail races varying in distances from 5 km up to 102 km, whether you are new to Trail or an experienced Ultra runner, Pro:Direct Running has a substantial selection of footwear, clothing, accessories and nutrition for whatever your needs across these distances and trail terrains.

VISIT PRO:DIRECT RUNNING

What you get

Free Parking

Fully Marked Course

Outposts

Fully Timed

Online Results

Event Photography

Food and Drink Available

Bag Drop Area

Metal Finishers Medal

Ultra & Long Route Prizes

Non Alcoholic Beer

More Information

CUT OFF POINTS & TIMES

These are in place for your safety and apply to the Ultra & Long route only. If you do not get to these points in time you will have to be collected as we don’t believe you will finish the route in time. Your safety is our priority.

You will have 8hr30 to complete the Ultra & Long route

ULTRA:

Start - Stonor Park - 0km - 08:00

1 – Hambleden Village Hall (toilet) – 11km - 09:45

2 – Turville – 18km - 10:55

3 – Northend Village Hall (toilet) – 30km - 13:00

4 – Russells Water Village Hall (toilet) – 37km - 14:00

5 – Crockers End – 44km - 15:15

Finish - Stonor Park - 52km - 16:30

LONG:

Start - Stonor Park - 0km - 08:30

1 - Turville – 12km - 10:55

2 – Northend Village Hall (toilet) – 20km - 13:00

3 – Russells Water Village Hall (toilet) – 27km - 14:00

4 – Crockers End – 34km - 15:15

Finish - Stonor Park - 52km - 16:30

OUTPOSTS

There will be no outpost on the Sprint route. There will be 1 outpost on the Short route, at approx 7km. There will be 2 outposts on the Middle route, at approx 7km and 14km. There will be 4 outposts on the Long route. There will be 5 outposts on the Ultra route.The outposts are designed to act as a top up for what you are already carrying. There will be a range of sweet & savoury snacks (fruit, cake, crisps) as well as gels and electrolyte drink. Please note outposts on this route do not have space for spectators.

There will not be pre-filled water cups available at the outpost. Please have your re-useable cup or bottle ready when you arrive and make use of our self serve water barrels.

PLASTIC FREE

In our quest to make this season plastic-free, we ask that you run with a reusable cup or bottle. Speed Cups are available to purchase at each event and online.

HEADPHONES

We strongly recommend not wearing headphones at this event.

TRANSFERS

If for any reason you wish to transfer out from an event we are happy to do this, but once only. You may transfer to any event listed on our website or even change to a higher value event and pay the difference. We cannot action any transfers or refunds for an event that has sold out.

The last day to transfer out of an event is the Monday before event day (5 days before the event), please email us on info@maverick-race.com with the name of the event you would like to move to. We are not able to move you out of an event if you contact us after this day

PLASTIC FREE

In an effort to keep our trails clean and preserve the nature around us, we’re aiming to keep our outposts cup-free. Please bring a cup or bottle to refill. Speed Cups are available to purchase at each event and online.

HEADPHONES

We strongly recommend not wearing headphones at this event, but if you do want to listen to your tunes whilst on the trials, we recommend bone conduction headphones.

TRANSFERS

If you need to transfer out from this event, you can do this via your Let's Do This account. You can't transfer if the event has sold out. The last day to transfer out of an event is the Monday before event day (5 days before the event). Please refer to our Terms & Conditions to read more about Transfers.

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