At a glance
- Date
- Jun 19, 2027
- Location
- Richfield, Utah
- Distances
- 100 mi, 50 mi, 50K, Marathon, Half Marathon, 10K
- Aid stations
- 4
- Registration
- See ultrasignup.com
Listed from UltraSignup. Checked Oct 18, 2026.
Plan this race for free
4 aid stations are already loaded. Add cutoffs, pacing and the timeline your crew follows. Crew invites and race-day updates come with a Race Pass.
Build my planAbout this race
A trail ultra held in the Fishlake National Forest on the Pahvant Range near Richfield, Utah, featuring three distances across red rock canyons, dry washes, and the Pahvant Mountain Bike Trail System. The signature 60km route summits White Pine Peak at 10,200 feet before descending 18 miles on the Spinal Tap Trail.
Key dates
Race day
Jun 19, 2027
Pricing
7–15 laps
after May 9
$110
All distances
7–15 laps regular registration
$90
1–6 laps
after May 9
$85
Email me updates about Endless Day Backyard Ultra
Registration openings and major changes, like a new date or a cancellation.
Aid stations
4| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
The Oasis Full aid-station spread at the start/finish park area. | -- | -- | -- | ||
Mid-course aid station Located about halfway through the loop/course. | -- | -- | -- | ||
Self-serve cooler 1 One of two additional self-serve coolers provided because of the potential for excessive heat; exact location not stated. | -- | -- | -- | ||
Self-serve cooler 2 One of two additional self-serve coolers provided because of the potential for excessive heat; exact location not stated. | -- | -- | -- |
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
Tune-up races
Behind the Rocks Ultra
Apr 3, 2027Moab, UT50 mi, 50K +2
50 Mile, 11 weeks before race day, 143 mi away, registration open
Thelma and Louise Marathon and Half
Apr 24, 2027Moab, UT50K, Marathon +2
50K, 8 weeks before race day, 143 mi away
Straight-line distance
Similar races
Ponderosa Polar Challenge 2026
Nov 7Orderville, UT150 mi, 100 mi +9
Also 100 miles, 108 mi from Endless Day Backyard Ultra, registration open
Huron 100
Jun 12, 2027Grass Lake, MI100 mi, 50 mi
Also 100 miles, similar trail technicality to Endless Day Backyard Ultra, registration open
Massanutten Mountain Trails 100M and 100K
May 15, 2027Fort Valley, VA100 mi, 100K
Also 100 miles, similar trail technicality to Endless Day Backyard Ultra, registration opens Oct 31
Hell Hole Hundred
Jun 4, 2027Bethera, SC100 mi
Also 100 miles, similar trail technicality to Endless Day Backyard Ultra
Straight-line distance
More 100 Mile Races in Utah
All 100 Mile Races in UtahPonderosa Polar Challenge 2026
Nov 7Orderville, UT150 mi, 100 mi +9
Zion Ultras
Apr 10, 2027Apple Valley, UT100 mi, 100K +3
Salt Flats Endurance Runs
Apr 30, 2027Wendover, UT100 mi, 100K +3
The Bear
Sep 24, 2027Logan, UT100 mi
Races Near Richfield
Trippen Through The Timber
Jun 26, 2027Payson, UT50K, 25K
Cryin on the Climb
Nov 7Provo, UT
The Timp Trail Marathon and Half
May 15, 2027Orem, UTMarathon, Half Marathon
Follow the Flag 5K Trail Race
Jul 10, 2027Pleasant Grove, UT5K
Snow Peaks 50 Mile Trail Run
Jun 12, 2027Provo, UT50 mi
Traverse Mountain Half Marathon
Nov 7Lehi, UTHalf Marathon
Connor's Claims Ultra
May 22, 2027Stockton, UT50 mi, 50K +1
Deer Creek Half Marathon
Jul 10, 2027Midway, UTHalf Marathon
Bonneville Backyard Ultra
Apr 24, 2027Provo, UTBackyard Ultra
Juniper Canyon Half Marathon
May 1, 2027Herriman, UTHalf Marathon
Butterfield Blitz Backyard
May 15, 2027Herriman, UT12 hr, 8 hr +1
June Races Nearby
All June racesRose Canyon Ultra
Jun 5, 2027Herriman, UT50 mi, 50K +1
Race planning
Plan Endless Day Backyard Ultra with Crewable
Build your aid station plan, organize your crew, and dial in your nutrition strategy. Everything you need to finish strong.
Build my planAre you the race director for Endless Day Backyard Ultra?
Claim this race to manage registration, volunteers, and race day.