The Giddy Horse Races: 12hr, 8hr Races (Solo & Team) Plus Canicross, Night Races, Obstacle Course Race & Trail Races

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From Relish Running races

  • Date Sat 25th October 2025
  • Time 10:00
  • Location Chepstow, Gwent
  • Price £25.92 - £90.00
  • Races 20 races
  • Distances Half Marathon, Ultra

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A vibrant illustration of a horse race featuring a large, colorful horse leading the pack. The horse has exaggerated features and a rainbow-striped coat. Smaller horses and jockeys compete in the background under a bright blue sky.

The Giddy Horse Races: 12hr, 8hr Races (Solo & Team) Plus Canicross, Night Races, Obstacle Course Race & Trail Races

Sat 25th October 2025

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Event summary

Get ready for an unforgettable running experience at The Giddy Horse Races, organized by Relish Running Races! This thrilling event will take place on Saturday, October 25, 2025, at the stunning Piercefield Park in Chepstow, Gwent. With a variety of race distances and formats, including 12hr, 8hr, and solo or team relay options, there's something for everyone. Enjoy the beautiful 4.167-mile loop that winds through woodland, parkland, and tarmac trails, perfect for runners of all levels.

The Giddy Horse is not just about running; it's a celebration of movement and fun! Participants can also take part in Canicross with 4-mile and 8-mile options, a Night Race with illuminated routes, and an exciting Steeplechase Obstacle Course Race featuring climbs, crawls, and muddy challenges. Plus, don’t miss the unique opportunity to “time travel” during the race weekend, thanks to the clock change! Join us for a fantastic day filled with camaraderie, competition, and classic time travel films in our chill-out zone. Whether you're a seasoned runner or just looking for a fresh challenge, The Giddy Horse Races promises a delightful adventure

The Giddy Horse Races: 12hr, 8hr Races (Solo & Team) Plus Canicross, Night Races, Obstacle Course Race & Trail Races

Sat 25th October 2025

A vibrant illustration of a horse race featuring a large, colorful horse leading the pack. The horse has exaggerated features and a rainbow-striped coat. Smaller horses and jockeys compete in the background under a bright blue sky. A group of six enthusiastic runners, wearing race bibs numbered 417, 421, 415, 418, 416, and 422, pose together and smile for the camera. They are outdoors in a grassy area with an obstacle course structure in the background. The runners appear muddy and happy. Participants in athletic gear navigate a large wooden climbing obstacle during an outdoor race event, with some individuals helping each other over the structure. Others are waiting or moving at the base, and the background is filled with trees. Participants in a race climb down a stack of hay bales outdoors. They wear race bibs on their shirts, and the setting appears to be a challenging and competitive event. Trees and foliage are visible in the background, suggesting a rural or park environment. A group of smiling participants, covered in mud, navigate over and under large wooden logs in a mud pit during an obstacle course race. The woman in front, wearing a tank top and bib number 557, raises one arm and laughs enthusiastically. Other racers are visible behind her.

Organiser's Description

The Giddy Horse is a weekend running extravaganza with running races for absolutely everyone around the beautiful Piercefield Park, based from Chepstow Racecourse with top notch facilities. The routes are based on a 4.167 mile loop with a mix of woodland, parkland and tarmac trails. The loop is largely flat with a little rise and fall in the middle of the circuit. Choose from solo and relay races, canicross and night races, trail and obstacles course races across the weekend.

The real magic at the Giddy Horse is that thanks to the race falling on the clock change weekend, it offer a unique opportunity to time travel and set records* with a 25 hour 24hr race, and the ability to run 25 yards in a the time capped 24hr backyard race! Head or chest torches are required (runners to supply) for the 12hr and 24hr races to illuminate the reflective signs along the route which is also marked with glowsticks to guide the way. *Records are delorian assisted and are therefore just for fun

We will be showing classic time travel films in our chill out zone throughout the event!

Backyard Races - 25th & 26th Oct

We have 24hr (104 mile!), 12hr (50 mile), 8hr (33 miles) Backyard Race for solo runners. There is also a team option for the 24hr race with team size of pairs (2), small team (3-5), medium team (6-8), large team (9-12). All races start on Saturday 25th October, with start times from noon. The 24hr, 12hr, 8hr start times will be confirmed based on final number of participants, they may be together or slightly off set by 10mins.

Canicross - 25th Oct

The canicross race has a 4 mile and 8 mile (2 lap) option. The canicross race is a time trail start with runners setting off individually to give runners maximum space out on the course. The races start from 15:30 on Saturday 25th October.

Night Race - 25th Oct

Runners can choose between a 4 mile and 8 mile (2 lap) race with the course marked with reflective signs and glow sticks. Runners need to provide their own headtorch or chest torch to take part.

Steeplechase Obstacle Course Race - 26th Oct

Take on climbs, crawls, mud and water in this super fun obstacle course race which is perfect for experienced OCR runners and for other runners who would like to dip their toe in the obstacle course racing world. There are 4 mile and 8 mile options. Races start from 10:00

Trail Races - 26th Oct

We have a 4 mile (1 lap), 8 miles (2 laps) and Half Marathon (3 slightly extended laps) around the beautiful park with views of the Severn Bridge and views of the cliffs along the Wye Valley.

Races

  • Half Marathon - Wave 1

    Predicted Time Less Than 2hrs 15mins. Provisional Start Time 09:30

    Sat 25th October 2025 (09:30)

    £45.36

    Booking for more than 1?

  • Half Marathon - Wave 2

    Open to All. Provisional Start Time 09:45

    Sat 25th October 2025 (09:45)

    £45.36

    Booking for more than 1?

  • 8 Mile Trail - Wave 1

    Open to All. Provisional Start Time 10:40

    Sat 25th October 2025 (10:40)

    £31.32

    Booking for more than 1?

  • 8 Mile Trail - Wave 2

    Open to All. Provisional Start Time 11:00

    Sat 25th October 2025 (11:00)

    £31.32

    Booking for more than 1?

  • 4 Mile Trail - Wave 1

    Open to All. Provisional Start Time 10:50

    Sat 25th October 2025 (10:50)

    £25.92

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 1

    Provisional Start Time 10:00

    Sat 25th October 2025 (10:00)

    £43.20

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 2

    Provisional Start Time 10:30

    Sat 25th October 2025 (10:30)

    £43.20

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 3

    Provisional Start Time 10:30

    Sat 25th October 2025 (10:00)

    £43.20

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 1

    Provisional Start Time 10:15, Age Restriction From 12

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 1 Adult Accompanied

    Provisional Start Time 10:15. 4 Mile Adult Accompanied Min Age 10

    Sat 25th October 2025 (10:15)

    £37.80 per

    Team 2

  • 4 Mile Steeplechase OCR - Wave 2

    Provisional Start Time 10:15, Age Restriction From 12

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 2 Adult Accompanied

    Provisional Start Time 10:15. 4 Mile Adult Accompanied Min Age 10

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • Canicross 8 Mile

    Provisional Start Time From 15:30

    Sat 25th October 2025 (15:30)

    £31.32

    Booking for more than 1?

  • Canicross 4 Mile

    Provisional Start Time From 15:40

    Sat 25th October 2025 (15:30)

    £25.92

    Booking for more than 1?

  • Night 8 Mile - Wave 1

    Provisional Start Time From 19:00

    Sat 25th October 2025 (19:00)

    £31.32

    Booking for more than 1?

  • Night 8 Mile - Wave 2

    Provisional Start Time From 19:05

    Sat 25th October 2025 (19:05)

    £31.32

    Booking for more than 1?

  • Night 4 Mile

    Provisional Start Time 19:10

    Sat 25th October 2025 (19:10)

    £25.92

    Booking for more than 1?

  • 8hr Backyard (33.3 Mile Solo Ultra)

    Provisional Start Time 09:00. Min Age 20.

    Sat 25th October 2025 (09:00)

    £64.80

    Booking for more than 1?

  • 12hr Backyard (50 Mile Solo Ultra)

    Sat 25th October 2025 (09:00)

    £81.00

    Booking for more than 1?

  • 12hr Relay Pair

    Provisional Start Time 09:00

    Sat 25th October 2025 (09:00)

    £90.00 per

    Team 2

Book

  • Half Marathon - Wave 1

    Predicted Time Less Than 2hrs 15mins. Provisional Start Time 09:30

    Sat 25th October 2025 (09:30)

    £45.36

    Booking for more than 1?

  • Half Marathon - Wave 2

    Open to All. Provisional Start Time 09:45

    Sat 25th October 2025 (09:45)

    £45.36

    Booking for more than 1?

  • 8 Mile Trail - Wave 1

    Open to All. Provisional Start Time 10:40

    Sat 25th October 2025 (10:40)

    £31.32

    Booking for more than 1?

  • 8 Mile Trail - Wave 2

    Open to All. Provisional Start Time 11:00

    Sat 25th October 2025 (11:00)

    £31.32

    Booking for more than 1?

  • 4 Mile Trail - Wave 1

    Open to All. Provisional Start Time 10:50

    Sat 25th October 2025 (10:50)

    £25.92

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 1

    Provisional Start Time 10:00

    Sat 25th October 2025 (10:00)

    £43.20

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 2

    Provisional Start Time 10:30

    Sat 25th October 2025 (10:30)

    £43.20

    Booking for more than 1?

  • 8 Mile Steeplechase OCR - Wave 3

    Provisional Start Time 10:30

    Sat 25th October 2025 (10:00)

    £43.20

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 1

    Provisional Start Time 10:15, Age Restriction From 12

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 1 Adult Accompanied

    Provisional Start Time 10:15. 4 Mile Adult Accompanied Min Age 10

    Sat 25th October 2025 (10:15)

    £37.80 per

    Team 2

  • 4 Mile Steeplechase OCR - Wave 2

    Provisional Start Time 10:15, Age Restriction From 12

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • 4 Mile Steeplechase OCR - Wave 2 Adult Accompanied

    Provisional Start Time 10:15. 4 Mile Adult Accompanied Min Age 10

    Sat 25th October 2025 (10:15)

    £37.80

    Booking for more than 1?

  • Canicross 8 Mile

    Provisional Start Time From 15:30

    Sat 25th October 2025 (15:30)

    £31.32

    Booking for more than 1?

  • Canicross 4 Mile

    Provisional Start Time From 15:40

    Sat 25th October 2025 (15:30)

    £25.92

    Booking for more than 1?

  • Night 8 Mile - Wave 1

    Provisional Start Time From 19:00

    Sat 25th October 2025 (19:00)

    £31.32

    Booking for more than 1?

  • Night 8 Mile - Wave 2

    Provisional Start Time From 19:05

    Sat 25th October 2025 (19:05)

    £31.32

    Booking for more than 1?

  • Night 4 Mile

    Provisional Start Time 19:10

    Sat 25th October 2025 (19:10)

    £25.92

    Booking for more than 1?

  • 8hr Backyard (33.3 Mile Solo Ultra)

    Provisional Start Time 09:00. Min Age 20.

    Sat 25th October 2025 (09:00)

    £64.80

    Booking for more than 1?

  • 12hr Backyard (50 Mile Solo Ultra)

    Sat 25th October 2025 (09:00)

    £81.00

    Booking for more than 1?

  • 12hr Relay Pair

    Provisional Start Time 09:00

    Sat 25th October 2025 (09:00)

    £90.00 per

    Team 2

Course Details

The route is 20% tarmac, 7% on stone track and the rest is on open parkland and trail.

There are on site toilets, coffee vans and caterers during the afternoon and evening on Saturday and during the morning on the Sunday. There is a bag drop and there is a changing tent.

Spectators, including dogs, are very welcome. The best place to spectate is near the finish area or you are welcome to be out on the course. If you are on the course please make sure you don't block the view of the lap split boards by Golden Gate Lodge

What's Included

All finishers will take home a top quality custom medal. Adult medals will be a VERY large 10cm x 10cm medal, Mini Steeplechase medals may be a mix of different designs.

  • Bespoke Custom Medal
  • Buffet of delicious post race treats
  • Really friendly, inclusive atmosphere, perfect for your first OCR

How to Get There

Bristol - 30mins by car
Bath - 45mins by car
Cardiff - 45mins by car
Swansea - 75mins by car

The nearest train station is in Chepstow, just 1.5miles away.

Parking

Parking is £2/car and it is on site at Chepstow Racecourse. The Chepstow Steeplechase is 25mins from Bristol, 40mins from Bath, 40mins from Cardiff, 2hrs 15mins from London. The nearest train station is Chepstow, which is 2 miles from the start line

Location

Chepstow Racecourse, Chepstow, Monmouthshire, NP16 6BE.
What3Words /// rail.canines.merely

Backyard Races - 25th & 26th Oct

We have 24hr (104 mile!), 12hr (50 mile), 8hr (33 miles) Backyard Race for solo runners. There is also a team option for the 24hr race with team size of pairs (2), small team (3-5), medium team (6-8), large team (9-12). All races start on Saturday 25th October, with start times from noon. The 24hr, 12hr, 8hr start times will be confirmed based on final number of participants, they may be together or slightly off set by 10mins.

All Giddy Horse Backyard Solo Race (8hr, 12hr, 24hr) are held on a 4.167mile course and are fun and inclusive way to complete your first Ultra Marathon. If you run the 8hr Backyard then you will run a 33.3 mile Ultra. If you run the 12hr Backyard then you will run a 50 mile Ultra. If you run the 24hr Time Travel Backyard, you will run 104 miles!! Every hour, all runners start a new loop. Pacing is key as runners can not start the next loop early to bank time, runners can only start a loop every hour. If you don't complete your lap in an hour then you withdraw from the race.

The Giddy Horse 24hr Relay option is a great way to soak up the event atmosphere and enjoy longer rests between your laps. The event Relay event is held on the 4.167 mile loop, but runners are not held to the starting a new lap every hour rule. Relay runners can run continuously, or take longer breaks between laps, it is entirely at the discretion of the team. Relay runners can sync in with the hourly start times and act as pacers for the Solo runners, but you will not be out of the race should you not complete your lap in an hour. The final lap must be completed within the 12hour time limit for it to count to the team's total distance.

In summary, both races run on the same 4.167 mile loop. Solo Backyard runners must start on the hour and be completed in an hour in order to start the next lap. Relay runners have total discretion on the timing of their laps.

The original Backyard Ultra concept of this event was created by Lazarus Lake, the man behind the Barkley Marathons, and takes the form of an open ended Ultra - the race continues until only 1 person is left and completes 1 more loop than any other runner. The World Record currently stands at 108 laps with the race lasting 4.5 days!

Whilst the Giddy Horse Backyard events are faithful to the core features of the Ultra event in terms of distance, format and timing, only races that taken the open ended form may use the name 'Backyard Ultra' which is why our time limited events are named Giddy Horse Time Travel 24hr Backyard, Giddy Horse Time Travel 24hr Relay, Giddy Horse 12hr Backyard and Giddy Horse 8hr Backyard

  • Camping is included for all 24hr solo and team runners.
  • There is 1 drinks station at the lap point where you can grab some snacks and refreshments once you have concluded each lap. Snacks will include haribo, tribe bars (GF, vegan) and other tasty treats. Caterers will be available to keep you going with more substantial food across Saturday and Sunday.
  • There will be catering during the core event hours tbc, 16:00 - 21:00, 09:00 - 13:00. Fresh coffee, tea and hot chocolate will be available throughout the night for the 24hrs races
  • All solo Backyard finisher's medals are super size, 15cm x 15cm. Runners who achieve the 24hr (104 mile) Backyard will be awarded a supersize medal with a gold ribbon, 12hr (50 mile) Backyard will be awarded a supersize medal with a Silver ribbon, those who achieve the 8hr (33.3 mile) Backyard will be awarded a supersize medal with a Bronze ribbon. Those who fall short this year and do not achieve the distance of the event they registered for will be awarded a medal with an #UnfinishedBusiness ribbon
  • All relay races will collect a medals take home a large 10cm x 10cm medal. Teams who achieve at 125 miles will take home a gold ribbon on their medal, 100 miles will take home a silver ribbon medal and 60 miles will take home a bronze ribbon medal.

Canicross - 25th Oct

The canicross race has a 4 mile and 8 mile (2 lap) option. The canicross race is a time trail start with runners setting off individually to give runners maximum space out on the course. The races start from 15:30 on Saturday 25th October.

prizes

All our finishers receive a top of the range custom medal as well as a buffet of fresh fruit and other tasty treats.

Backyard Solo Awards

In keeping with the Backyard Ultra way of doing things, there are no overall winners for the Solo races - you either achieved the distance or.....you did not. All solo finisher's medals are super size, 15cm x 15cm. Runners who achieve the 24hr (104 mile) Backyard will be awarded a supersize medal with a gold ribbon, 12hr (50 mile) Backyard will be awarded a supersize medal with a Silver ribbon, those who achieve the 8hr (33.3 mile) Backyard will be awarded a supersize medal with a Bronze ribbon. Those who fall short this year and do not achieve the distance of the event they registered for will be awarded a medal with an #UnfinishedBusiness ribbon

Relay Race Awards

All relay races will collect a medals take home a large 10cm x 10cm medal. Teams who achieve at 125 miles will take home a gold ribbon on their medal, 100 miles will take home a silver ribbon medal and 60 miles will take home a bronze ribbon medal. Less than 60 miles will take home a medal with the Giddy Horse ribbon.

There will be a prize for the pair, small team, medium team and large team that achieve the furthest distance. Note only complete laps finished in the 24hrs count towards your total.

Night Race - 25th Oct

Runners can choose between a 4 mile and 8 mile (2 lap) race with the course marked with reflective signs and glow sticks. Runners need to provide their own headtorch or chest torch to take part.

Steeplechase Obstacle Course Race - 26th Oct

Take on climbs, crawls, mud and water in this super fun obstacle course race which is perfect for experienced OCR runners and for other runners who would like to dip their toe in the obstacle course racing world. There are 4 mile and 8 mile options. Races start from 10:00

Trail Races - 26th Oct

We have a 4 mile (1 lap), 8 miles (2 laps) and Half Marathon (3 slightly extended laps) around the beautiful park with views of the Severn Bridge and views of the cliffs along the Wye Valley.

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Location

NP16 6BE St Lawrence Road, Chepstow, United Kingdom

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The Giddy Horse Races: 12hr, 8hr Races (Solo & Team) Plus Canicross, Night Races, Obstacle Course Race & Trail Races

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