Centurion Running

Thames Path 100®

3 May 2025

Enter Now!Enter Grandslam

Course Records

Richard McDowell (M)



Samantha Amend (F)



The TP100 is a 100 mile continuous trail race along the Thames Path from London to Oxford. Total Climb: 1900 feet. 14th Annual.

The 100 mile course is a marked point to point race which takes runners from Richmond in South West London to the centre of Oxford. The course follows the meandering route of the Thames against it's flow and is flat and fast with the majority on groomed paths/ trails and paved pathway. There are some truly stunning sections of the route showing off the best of English riverside scenery and life on the Thames. Held Under official UKA Permit granted through the Trail Running Association (Permit Number Pending).


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3 May 2025 09:00

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25% Paved / 75% trail

General Info


Entries for the 2025 Event open on Saturday May 25th 2024 at 1000. Runners must meet the minimum qualification standard below, to apply. Volunteers from 2024 get priority free entry prior to general entries going on sale.

Runners may also enter the TP100 as part of the 100 mile Grand Slam. To take part in the Slam, runners can enter each event individually, or buy a Grand Slam ticket which gets you entry to all four 100 Mile Slam events. Information on the Grand Slam, and how to enter it can be found by clicking here

Entries are available on a first come first served basis. No waiting list will be held for this event and no entries will be taken on the day.

Qualification Standard

In order to enter you must have completed a minimum of a 50 mile distance race within 15hrs, between 1st January 2020 and race day. As organisers, we reserve the right to refuse anybody entry who does not meet this standard. Unqualified runners may enter but will be contacted approximately 8 weeks prior to race to verify qualification plans if they have not updated their online information by this time.

Click here to read more about what counts as a qualifier

Start/ Finish Location

Race HQ is at Richmond Old Town Hall overlooking the river and a short walk from Richmond station. The race starts on Richmond New Waterfront, adjacent to the river and just a one minute walk from the Hall.

The finish location is Queen's College Sports Ground just a few hundred yards from the city centre. Runners will turn left off of the Thames Path just before the Head of the River Pub which looms over the Thames Path from Oxford City Centre, and turn directly in to the finishing chute in front of the pavilion. We are very privileged to be allowed to finish in the grounds of Oxford University.  


The 2025 race route remains on the Thames Path from the outset until the finish line with one minor deviation to Clifton Hampden aid station on route which will be clearly marked on race day. Diversions in place due to bridge damage in 2024 are not expected to be in place for 2025 so the course reverts to the normal route. Any diversions will be announced well in advance of race day. 

A map of the route can be found at the bottom of this page. 

Cut Offs

Runners must finish within a 30 hour time limit. There are cut offs at every aid station on route, designed with the purpose of keeping runners on course to finish within that 30 hour limit. 


100 mile Centurion Buckle to all finishers. Runners finishing the course in under 24 hours will receive '100 miles - One Day' buckles commemorating their achievement. Runners finishing between 24 and 30 hours will receive '100 mile - Finisher' buckles.

Trophies will be awarded to first place male and female. Further Prizes will be awarded to 2nd and 3rd Placed Male and Female. Age Group Prizes will be awarded for 1st Male and Female Vet 40, 50, 60 and 70. 

Runners who finish five editions of this event will receive a 500 Mile Buckle. Runners who finish 10 editions of this event will receive a 1000 mile buckle. 

Aid Stations

There will be a minimum of twelve aid stations along the course. Aid stations carry as a minimum: Water, Tailwind, Coke, Gu Gels, Fruit, Sandwiches, Wraps, Vegan and Vegeterian Snacks and other sweet and savoury options.

A full list of the aid station distances can be found here

Drop Bags

Drop Bags must be deposited at the race start between 0700 and 0845 on race morning. Drop bags must NOT exceed 45cm x 25cm x 25cm in size ie. the size of a large shoe box for any one aid station. They must be labelled with your name, aid station it is to go to and race number. Drop bags will be accessible at the following points and will be available for collection between 1000 and 1500 on Sunday, at the finish line. Drop bags must be collected by 1500, any left over at this time will be disposed of. Runners need to leave a different drop bag for each aid station, each bag will be transported to the aid station listed and then the finish. Finish line bags will be taken directly to the finish only. 

  • Mile 51: Henley
  • Mile 71: Goring
  • Finish: Oxford

Finish Line Bags

Finish Line Bags can be deposited at registration and should be clearly labelled with runners name and bib number. These will be transported to the finish for you.  Your finish line bag may be a maximum of 50 litres in size.  NO suitcases will be permitted.  

Course Markings

The course is marked by permanent national trail marker posts maintained by the National Trails Trust which come in different forms but most commonly display the acorn which is the key symbol and guide on the Thames Path.

In addition to the fixed markers as above, the course will also be marked with our pink Centurion branded upcycled ribbons and Centurion marker arrows for the entire duration. 

There are a number of road crossings to negotiate, some of them are extremely busy. The road crossings will NOT be marshalled so please be extremely careful when you are crossing roads of any nature.

It is ultimately the runners responsibility to navigate the course successfully, with or without course markings. We strongly recommend that you take the time to recce the route before race day, have the GPX below uploaded onto your watch & carrying a map and compass are highly recommended for the event in case of an emergency. The Harveys Thames Path map available at a discounted rate here, is an excellent guide. 


Runners are permitted pacers from the 51 mile aid station at Henley. Pacers must travel on foot only. Runners are permitted multiple pacers throughout the last 49 miles but only one may travel with the runner at any one time.

The points at which a runner may be paced/ hand over pacers are listed on the crew page here. 


The points at which a runner may be crewed are listed on the crew page here.

Crews/ Pacers/ Supporters are not be permitted meet their runner at any point other than those listed on the link above.


There will be a dedicated team of race medics available throughout the duration of the weekend. If you suffer an injury or accident that warrants direct medical attention, the medics will be on hand to provide you with exactly that. Contact numbers and full details of what to do in an emergency will be given to you in the pre race information packs and again at race registration. Due to the nature of the course ie. some off road, the medics may take some time to reach you, or potentially be out of contact tending to other runners. In those instances you should contact the emergency services on 999. If you are injured but able to walk, please make your way to the nearest aid station where there will either be a medic, or an aid station captain will immediately get in touch with medical care should you require it/ arrange for transport out. If you suffer a severe injury or encounter someone in serious difficulty please call both 999 for emergency ambulance services and the course medics. If you come across a fallen runner please remain with them until help arrives.


75% of the course is on trail. Trail shoes are advised but if it's dry, you will be able to complete the course perfectly adequately in road shoes which have good grip. There are sections of trail which can become very muddy in wet conditions. The weather in April is extremely variable and can include anything from snow to heavy rain or bright sunshine. Be prepared for all conditions. 

There will be kit checks prior, during and after the race. Runners must carry the following mandatory equipment at all times. A time penalty of one hour will be imposed for any item found to be missing at any point on course. Please refer to this page for explanations on the inclusion of the below items. 

There are many options regards kit for fulfilling these requirements and those of other events. We stock what we believe to be the best options at our online store available by clicking here under the Mandatory Gear Section. Please ask us if you have any questions.

  • Fully Charged Mobile Phone including the numbers for the Race Medic and Race Director (on the number you have given at registration)
  • Water Bottles/Bladder capable of carrying a minimum of 1 litre.
  • Survival Blanket: 1.4m x 2m minimum
  • Waterproof Jacket: Gore-tex or similar, minimum 10000mm+ & must have sealed seams and a hood. 
  • Whistle
  • Headtorch or Primary Light Source - Minimum 100 Lumens
  • Back Up Light source - Minimum 100 Lumens 
  • Warm Hat - Beanie Hat or Buff (either are accepted)
  • Gloves 
  • Long sleeved base layer or fleece top - This must be carried separately in a dry or waterproof bag from the start and kept dry, for use only in an emergency. Starting in 2 layers is not a substitute.
  • The race is cupless which means you must bring a cup with you. Soft cups are available at the store here

Strongly recommended but not mandatory: 

  • Route Map - Should be a hard copy that you are able to navigate from and not a map on your phone
  • Compass - This should be a separate physical compass and not electronic/ on your phone. 

The video below takes you through the mandatory gear for the race and gives some tips and advice on how to pack your race vest and drop bag.

Course Map

Download KML fileDownload GPX fileNote: you may need to right click and Save As to download these files