WXT Ultra
Oct 24Titusville, NJ50K, 25K
66 mi from Boulder Field 100, similar trail technicality to Boulder Field 100, registration open
Boulder Field 100
- 18 mi entry
- $69
- Aid stations
- 16
At a glance
- Last held
- Sep 12, 2026
- Next edition
- 2027 date not announced. Usually held in September.
- Location
- Jim Thorpe, Pennsylvania
- Distances
- 100K, 50K, 18 mi
- Elevation gain
- 8,000 ft
- Aid stations
- 16
Listed from UltraSignup. Checked Sep 11, 2026.
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16 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
The Boulder Field Ultra is an advanced difficulty trail race held at Hickory Run State Park, featuring a historic boulder field crossing and the rugged "Shades of Death" trail. Offered in 18-mile, 50K, and 100K distances, the figure-8 course includes approximately 4,000 ft of elevation gain per 50K loop.
Key dates
Early ends
May 14, 2026
Mid ends
Aug 14, 2026
Early ends
Aug 14, 2026
Registration closes
Sep 7, 2026
Race day
Sep 12, 2026
Pricing
100K
Late
$115
50K
Late
$95
18M
Late
$69
All distances
18M Mid
$65
Email me updates about Boulder Field 100
Registration openings and major changes, like a new date or a cancellation.
Aid stations
16| Station | Distance | Crew | Drop bags | Cutoff | Supplies |
|---|---|---|---|---|---|
Mile 3 18M aid station | 3.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 5 50K aid station | 5.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 9.5 18M aid station | 9.50 miles | -- | Gatoradewatersnackscarbs | ||
Mile 10 50K aid station | 10.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 12 50K aid station | 12.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 14 18M aid station | 14.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 15 50K aid station | 15.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 21.5 50K aid station | 21.50 miles | -- | Gatoradewatersnackscarbs | ||
Mile 26 50K aid station | 26.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 31 100K aid station | 31.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 36 100K aid station | 36.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 41 100K aid station | 41.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 43 100K aid station | 43.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 45 100K aid station | 45.00 miles | -- | Gatoradewatersnackscarbs | ||
Mile 51.5 100K aid station | 51.50 miles | -- | Gatoradewatersnackscarbs | ||
Mile 57 100K aid station | 57.00 miles | -- | Gatoradewatersnackscarbs |
Entry transfers
Can't race, or need an entry? Post it here so nobody has to ask if it's still available.
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Race planning
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