How far is one backyard ultra yard?
The standard yard is 4.1667 miles, approximately 6.7056 kilometres. Twenty-four standard yards total 100 miles. Some local events use a different loop, so confirm the organizer's rules before planning.
Hourly-loop planning
Backyard Ultra Calculator
Convert yards into distance, compare loop pace with between-yard time, and build a printable schedule from the first bell to your target.
Yard scenario
Standard backyard yards start every hour; custom mode supports local variations.
Printable yard plan
Backyard Ultra Schedule
24 yards · 6.7056 km per yard
Total distance
160.93 km
100.00 miles
Loop pace
7:27/km
12:00/mi
Rest per yard
10.0 min
Before the next hourly start
Target completed
Day 2 · 07:50
At the planned loop time
Following bell
Day 2 · 08:00
One hour after the target yard starts
100-mile marker
24 yards
Exactly 100 miles by standard yard math
| Yard | Start | Planned finish | Cumulative km | Cumulative miles | Rest |
|---|---|---|---|---|---|
| 1 | 08:00 | 08:50 | 6.71 | 4.17 | 10.0 min |
| 6 | 13:00 | 13:50 | 40.23 | 25.00 | 10.0 min |
| 12 | 19:00 | 19:50 | 80.47 | 50.00 | 10.0 min |
| 18 | Day 2 · 01:00 | Day 2 · 01:50 | 120.70 | 75.00 | 10.0 min |
| 24 | Day 2 · 07:00 | Day 2 · 07:50 | 160.93 | 100.00 | 10.0 min |
The schedule assumes the same loop time for every yard. It cannot model fatigue, weather, darkness, course changes or medical risk. A short calculated rest window is not evidence that continuing is safe.
What This Calculator Shows
A standard backyard ultra requires one yard every hour. The calculator keeps the fixed hourly start separate from your planned loop time, so the remaining minutes are visible rather than hidden inside an average pace.
Use custom mode only when the event publishes a non-standard loop. Planning values should always be checked against the current race rules; the organizer determines the actual distance, start procedure and completion standard.
Use the Schedule Conservatively
The table is arithmetic, not a prediction. Repeated loop times may drift with darkness, weather, congestion, foot care and fatigue. Read the separate backyard strategy guide before turning a calculated rest window into a race plan.
Frequently Asked Questions
What pace finishes a standard yard in 50 minutes?
A 50-minute standard yard is about 7:27 per kilometre or 12:00 per mile. That leaves approximately ten minutes before the next hourly start, before any queueing or transition tasks.
Does faster always mean more recovery?
It creates more clock time before the next start, but may cost more effort. This calculator shows timing only and cannot identify a sustainable or safe loop pace for an individual runner.
When does yard 24 begin?
Yard one begins at the event start. Yard 24 therefore begins 23 hours later. Completing that standard yard reaches 100 miles before the next hourly bell.