Race day:
RunUKU Trail Running Series · Kathmandu, Nepal

Backyard
Ultra Nepal 3.0

One loop. Every hour. On the hour. There’s no finish line waiting for you—just the next lap, and the one after that. You stop when you can’t go on, or when everyone else already has.

🏃 Racing the same day: 7K Fun Run and 7K Fun Night Run—NPR 850 entry.

Aug 15, 2026
Race day · 7:00 AM start
Start / Finish · Next to New Laltin Restaurant
6.706 km
Loop distance · Every hour
25 laps / 174 km / +5,800 m
Event course record · Bijaya Rana Magar
NPR 2,500
Entry fee
The Format

Last one standing wins

Backyard Ultra is a loop-based endurance format: every runner completes a 6.706 km (4.167 mi) lap within a 60-minute window, then waits for the next lap to start on the hour. Finish early and the rest of the hour is yours—eat, hydrate, sit, or sleep if you dare.

There’s no set distance and no scheduled finish. The race continues, hour after hour, until every runner but one has failed to complete a lap in time. That last finisher is the winner—whether the race lasts four hours or forty.

It’s less a test of raw speed than of pacing, patience, and the will to keep lacing back up when your body is telling you to stop.

1 Loop
= 1 Hour

The loop repeats every hour—indefinitely
Key Features

What you’re signing up for

Backyard Ultra rewards runners who can think as clearly in hour twenty as they did in hour one. Here’s what defines the format.

Distance

4.167 mi / 6.706 km per loop

Every runner covers the same marked course, every hour, for as long as they last.

Time Limit

60 minutes, no extensions

Miss the top of the hour and you’re out—no partial credit and no grace period.

The Finish

No fixed distance or end time

The race isn’t over until only one runner can still complete a lap on time.

Rest & Refuel

The clock is your resource

Finish a loop in 45 minutes and the other 15 are yours—eat, hydrate, change, and recover.

Self-Sufficiency

No outside assistance

Beyond medical or official race personnel, you’re on your own between loops.

The Real Test

Mental before physical

Most runners who drop out still could have finished one more loop. Most.

ITRA Points

Earn ITRA 1–6 points

Complete enough loops at the August 15, 2026 event and you’ll score ITRA points on a scale of 1 through 6—boosting your international ranking.

Beyond the Finish Line

This is also how Team Nepal gets picked

Backyard ULTRA Nepal 3.0 doubles as the selection race for Team Nepal at Big’s Team World Championship—a Satellite World Championship where Team Nepal races from Pokhara while teams from more than 63 countries compete simultaneously from their own countries. Every loop you complete here is also a case for your place on that start line.

24 loops or more = automatic Team Nepal selection Hit the 24-lap mark and you’re in—automatically selected to represent Nepal against 63+ countries, with a shot at the Individual World Championship.
Backyard ULTRA Nepal 3.0—Team Nepal is selected in Kathmandu.
Big’s Team World Championship—a Satellite World Championship, with Team Nepal racing from Pokhara while teams from 63+ countries compete simultaneously from their own countries.
Big’s Individual Backyard Ultra World Championship—the last one standing for Team Nepal earns the chance to travel to the US and compete.
Runners who reach 24 loops at BYUN 3.0 are automatically selected for Team Nepal. Learn more about the road to Big’s:
bigsbackyardultra.com/road-to-bigs →
Entry

NPR 2,500

Registration fee
  • Check-in / BIB6:00 AM
  • Race briefing6:45 AM
  • Start7:00 AM
  • BIB numberIncluded
  • Well-marked race courseIncluded
  • Custom finisher medalBackyard Ultra runners
  • Hydration & snacks on courseIncluded
  • Medical staff for minor injuriesIncluded
  • Bragging rightsNon-negotiable
Prize Purse

Seven ways to earn cash

Overall winnerNPR 30,000
Gender category winnerNPR 20,000
Top 5 overall finishers (each)NPR 3,000

The race starts at 7:00 AM on August 15, 2026, at the Start/Finish venue in Chundevi, Machchhegaun, next to New Laltin Restaurant. Check-in and BIB distribution open at 6:00 AM, followed by the race briefing at 6:45 AM. A minimum of 24 completed loops is required to be eligible for the top cash prizes, and a minimum of 7 loops is required for the Top 5 Overall awards. Each runner may claim only one prize. Runners who reach 24 loops are also automatically selected for Team Nepal.

Also on Race Day

7K Fun Runs

Not ready for a last-one-standing format? Join the shorter, social side of race day—same energy, same finish-line pride.

Daytime

7K Fun Run

NPR 850 Entry
  • Check-in / BIB6:00 AM
  • Race briefing6:45 AM
  • Start7:00 AM

All finishers receive a standard finisher medal. The top three male and top three female finishers also receive a custom stone medal.

After Dark

7K Fun Night Run

NPR 850 Entry
  • Check-in / BIB6:00 PM
  • Race briefing6:45 PM
  • Start7:00 PM

All finishers receive a standard finisher medal. The top three male and top three female finishers also receive a custom stone medal.

The hour starts whether you’re ready or not

Spots for Backyard ULTRA Nepal 3.0 on August 15, 2026 are limited. Register now to lock in your BIB and find out how many loops you have in you.

Register Now