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The Relentless

10×5 = 50 mile Ultra (25 entrants only)

10×10 =100 mile Ultra (25 entrants only)

Two formats. One relentless test.

10×5 Ultra → Run 10 miles × 5 loops = 50 miles

10×10 Ultra → Run 10 miles × 10 loops = 100 miles

Elevation 

100 miles approx 7000ft

50 miles approx 3500ft

By breaking the ultra into 10-mile segments, runners take on a distance that is both manageable and relentlessly demanding.

Perfect for runners trying to achieve their first 50 mile or 100 mile ultra.

But its also relentless enough for the more accomplished ultra runner.

Dates & Times

Start (Both Distances):

Friday, 18th September 2026 — 19:00 hrs

Finish (50 miles):

Saturday, 19th September 2026 

Cutoff Time, 19:00 hrs

Finish (100 miles):

Sunday, 20th September 2026

Cutoff Time, 16:00 hrs 

 

Race Format

Course: 10-mile loop

Distances:

50 miles → 5 loops

100 miles → 10 loops

Aid Stations

Major hub at the Start/Finish = (lap checkpoint)

Fully stocked food, hydration, and medical support

Drop-bag access and crew zone available each lap

Sleep station if required

Time Limits:

50 miles → 24 hours

100 miles → 45 hours

Why This Format Works

Mental Strategy

Tackling 10 miles at a time makes even 100 miles feel achievable.

Consistency

Each lap is a checkpoint: reset mentally, refuel, and keep moving forward.

Support

Crews and spectators see athletes every 10 miles, giving encouragement and energy.

The Bling

Relentless 50 mile

Bespoke Medal

Bespoke Trophy

for 1st, 2nd, 3rd male/female

Relentless 100 mile

Bespoke Medal

Bespoke 100 mile Ring 

YES ....

We like to be different no belt buckle with us you get a Mad Running Junkies 100 mile commemorative ring.

Bespoke Trophy

for 1st, 2nd, 3rd male/female

LOCATION

BRIDGEND, SOUTH WALES

The Relentless isn’t just about running far—it’s about proving you can start again, no matter how many times it takes.

View the Event Disclaimer / Terms and Conditions.

View the Event Cancellation / Refund Policy.

This event offers the option to purchase XCover, so that participants may be able to get a refund if they are unable to attend due to unforeseen circumstances.

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