"No need to run our races in Lederhosen"

               Upcoming races

"Boulder Field Ultra"

Ultrarunning in one of PA's most beautiful parks

100km - 50km - 18Miler

Hickory Run State Park, Jim Thorpe, PA

Saturday, Sept 14th 2024
Limit 400 Runners & Hikers

Register online now

Over the last 13 years, Uberendurancesports has built a reputation for putting on well organized running events, many of them trail runs that are also beginner friendly. The Boulderfield 100k/50k was created to offer a new, more challenging race to our runners. We do believe that every properly trained runner can tackle this challenge but it will be more difficult than our other trail races. Elevation is estimated to be about 4000ft per 50k loop. In addition to the rolling character of the course , you will encounter a boulderfield crossing and a very rugged 1 mile trail section called the Shades of Death Trail. But it will not be quite as difficult as many of the races in the upstate PA area, so I would think it would be fair to describe this as a mid level difficulty course. There is a 16 hour timelimit for the 100k & 14 hour for the 50k (13hour 30min for the 18 miler), which will make the shorter race hiker friendly. If this sounds like your kind of fun, please join us.


100 km Ultra Run
50K Ultra Run and Mega Hike
18Mile Trail Run and Uber Hike

Bib Pickup:

Fri Sept 13th 4:00PM - 8:00PM & Sat Sept 14th 4:00AM - 7:00AM
At the pavillion next to Sand Spring Lake , Hickory Run State Park
approx address: 3613 State Route 534, White Haven, PA 18661

Start Time:

100K 5:00 AM
50K 7:00 AM
18M 7:30AM


Hickory Run State Park, Sand Spring Lake
approx address: 3613 State Route 534, White Haven, PA 18661

2024 Fees: 

50K: 85$ till 5/15  $89 till 8/15 $95 after
100K $99 till 5/15  $109 till 8/15 and $115 after
18 Miler $59 till 5/15 $65 till 8/15 and $69 after

Register online now

Refund policy:

Till 8/15

Mail us a stamped self-addressed envelope to receive a refund minus $10:

after 8/15:

all entries are final unless there is a waiting list. If there is a waiting list, mail us a stamped self-addressed envelope to receive a refund minus $10 to:
UES, c/o Boulderfield, 2137 Old Lancaster Pike, Reinholds, PA 17569

No unauthorized bib transfers, please contact Rd at Stephanweiss@comcast.net to find out if and how you can transfer your bib.

Free Tent Camping: 

We were able to secure free tent camping Friday night and Saturday night for all the runners. The location is marked on the course map , but we also have a sign out that weekend. No reservation required, just show up and pitch your tent.If you bring some type of RV , you must make your own reservation at the main campground.

Site: G
Site Type: Rustic Organized Group Tenting Site
Arrival Date: Fri Sep 13 2024
Departure Date: Sun Sep 15 2024
Hanging out with a bunch of trail runners for the weekend, with a little run in between, my kind of weekend.

Hickory Run State Park, Sand Spring Lake
approx address: 3613 State Route 534, White Haven, PA 18661


All runners will receive a finisher award.
Top 3 overall and Winner Masters. Age groups Top 5 : 18-39, 40-49, 50-59 & Winner 60 plus

Time Limit:

All runners have to finish before 9PM, 15.5 min per mile pace for the 100k. This also makes the 50k very hiker friendly. You have 14 hours for 31 Miles and 13:30 for the 18 Miler.


The average temp at the start is in the upper 40ies. Average high is 72.


Timing method tbd. You have to finish the distance you signed up for , you can not drop to a shorter distance during the race.

Aid Stations:

Aid Stations (approx):
Mile 5, 10,12,15,21.5,26 (50K and 100K)

Mile: 31,36,41,43,45,51.5,57

18 Miler:
3, 9.5, 14

We highly recommend carrying at least 16oz of fluid to keep hydrated between aidstations. Gatorade and water will be available at all the aidstation. There will be the usual snacks and carbs to keep you fueled at the race (bring your own brand of gels, if you rely on them).


Entire course is within Hickory Run State Park. Course is a figure 8 shaped 50K loop, 100k runners will run the 50k course twice.

90% of the course is a mix of single track hiking trails and some wider multi-use trails, only about 1 mile of (gravel)road.
Most of the trails are not considered super difficult by trail running standards, but especially the Shades of Death Trail section ( about 1 mile)and the boulderfield crossing ( less then 1 mile) are very difficult.

Use letters to mark the preliminary course on the map:

Start: Sand Spring Lake
A (0.5/0.5)
C (1/1.5)
Q (2.5/4)
S (to bridge 1/5) Aid 1
K (southbound 0.6/5.6)
F (2.2/7.8)
U (1/2 way 1/8.8)
X (1/9.8)
S (Bridge to Ranger Station 1/10.8) Aid 2
T (1/11.8) Aid 3
H (3.3/15.1) Aid 4
V (east bound 1.5/16.6)
D (2/21.6) Aid 5
W (2.4/24.0)
G (4.5/28.5) Aid 6 @ Mile 26
R (1.1/29.6) and Road back to beach 1.5/31.1)
Finish at Sand Spring Lake

Course Map

Post Race Party:

We will hand out the awards as runners cross the finish line. Post race food provided by a chef and a pastry chef.



We recommend camping at Hickory Run State Park. You can either tent camp for free at our organized tent camping site for runners and volunteers, or if you prefer more privacy or would like to bring an RV, simply make a reservation with the park. Campsites start at $23 per day. You are just a short walk to the start/finish line and you get to enjoy camping with like minded runners. More info about camping and to make reservation go to Hickory Run Camping

To find hotels nearby check Hotels at Googlemaps.com