August 26 - 27, 2023

Shawnee Hills Trail Races

3760 Ondessonk Rd.

Ozark, IL 100 Miler, 100K, 50K, Half Marathon

This Event Took Place Sun. Aug 27, 2023

Course Details

Camp Ondessonk
3760 Ondessonk Rd.
Ozark, IL 62972

Camp Ondessonk, in the heart of the Shawnee National Forest, will be the play host to the Shawnee Hills Trail Races. The runners will get to explore some of the most stunning and extraordinary rock formations and waterfalls that Shawnee National Forest is well known for, vegetation consists largely of oak-hickory, maple-beech, and pine forests. The course will take you deep into the sandstone canyon systems of Southern Illinois' Shawnee Hills Natural Division while traversing Jackson Hollow and the Bay Creek Reservoir and several waterfalls along the course including Pakentuck Falls (the tallest free-falling waterfall in Illinois), Jackson Falls, Horseshoe Falls, and Cedar Falls along with some inspiring views from Salomon's Ridge.
THE COURSE is a figure eight loop with a combination of 80% single track trail, all dirt with some fire roads. The course is hilly; total climb between 50 feet - 150 feet (2,500 feet - 7,500 feet in 50miles), the terrain is technical with lots of rocks, roots/ruts and creek crossings to keep you present.
Runners will be exposed to heat and humidity along with possible encounter with Snakes, Ground Hornets and Bees that are native to the area.

100 Mile Run (1 short 3-ish mile loop at the start and 3 x 32-ish mile loop)
100K Run (2 x 32-ish mile loop)
50K Run (1 32-ish mile loop)
1/2 Marathon (13-ish miles on the west section of the loop)

Start Time, Cut-offs, Schedule

All distances start and finish on the Camp Ondessonk grounds.
START TIME: 6am CDT on Saturday, August 26, 2023
TIME LIMIT: 33 Hours
PACER for 100Mi Only 1 pacer at a time will be allowed on the course.
PACER must CHECK IN at Start/Finish
*Contact us via email for early or late Check In.

START TIME: 7am CDT on Saturday, August 26, 2023
TIME LIMIT: 32 Hours
PACER for 100K Only 1 pacer at a time will be allowed on the course.
Pacer can be picked up on loop 1 at 50.7 miles/Cedar Road Aid Station to the finish (100K)
PACER must CHECK IN at Start/Finish
*Contact us via email for early or late Check In.

START TIME: 7am CDT on Saturday, August 26, 2023
TIME LIMIT: 32 Hours
PACER Not Allowed for 50K Distance.

1/2 Marathon
START TIME: 8am CDT on Saturday, August 26, 2023
TIME LIMIT: 12 Hours
PACER Not Allowed for 1/2 Marathon Distance.

CHECK IN/PACKET PICKUP: Friday, August 25 from 4pm - 7pm
PRE-RACE MEETING: This will be published via a Facebook live video during race week!
PRE-RACE MEAL: Friday, August 26 at 5:00PM (meal tickets are required)

Menu: Hot Pasta Dinner with meat sauce or vegetarian sauce, salad, garlic bread, dessert and iced tea

If you fail to finish the distance you are signed up to run, you ARE now eligible for a time of the minimum official distance you completed...but not awards! Example: You are registered for the 100k but only complete one loop, you are eligible for a 50k time and medal but not awards! You deserve to be rewarded for the work you put in!

Important Please Read!

This is the official UltraSignup registration page for the 2023 Shawnee Hills Trail Races. Registration for the 2023 event will open on Sunday, January 1, 2023 at 12:01AM CST and will close on Friday August 18th, 2023 at 11:59PM CST or once the field limit has been met.

IMPORTANT NOTE: We ask that you do not register until you have taken the time to review the official race website HERE and familiarize yourself with general race information, race rules, deadlines, entry fees, field limits, registration, and refund policies etc.

We are 100% dedicated to making this experience amazing for each and every runner. If you have any questions or concerns prior to registering, please reach out to us! We can't wait to see you all in August 2023!
Thank you - Stephanie & Laura

Aid Stations

There will be 5 manned aid stations fully-stocked with water, electrolyte drinks, gels, snacks, first aid, and enthusiastic volunteers!
Approximate distance between aid stations is 5 miles with no distance greater than approximately 8 miles between aid stations in either event.

Restrooms will be at Start/Finish, Trigg Tower, Jackson Falls and Cedar Road Aid Station.

Swag and Awards

Each registered runners will receive a custom tech T-Shirt (Men) or Tank Top (Women) from Headsweats (gender specific)!

**Shirt Order Deadline is August 7, 2023**
Finisher Awards:
100mi Run - Large Custom Belt Buckle
100K Run - Small Custom Belt Buckle
50K Run - Custom Medal
1/2 Marathon - Custom Medal

Overall Awards for both Male and Female winners for in all distances.


We will have the rustic one-star luxury of the Camp O tree houses for our overnight weekend accommodations. All weekend lodging at Camp Ondessonk for two people (runner + 1) is included in your registration. For each additional person accompanying the runners there will be a $10 fee for lodging in the treehouses for the entire weekend. These kick ass tree houses give you the outdoor experience without the hassles of packing all your camping gear. Think open air sleeping with a roof over your head, no doors or screens to interrupt your enjoyment of all things outdoors. A sleeping bag, some clothes, your running gear and a pair of running shoes are all you need to bring. If you still want to drag along the tent and sleep on the ground we can accommodate you too, and this year there are a very limited number of Hostel-style, climate-controlled guest rooms with private bathroom and free WiFi sleeps 8 people. Visit Camp Ondessonk facility page to get the details and/or reserve a room.

Camping: 1 tent per runners is included in the registration fee for any additional tents there will be a $10 fee for camping.

If the tree houses aren't you thing, check out hotels in Vienna or Marion, IL. There are also a few Airbnb's near Ozark, IL you can check out.

Important Deadlines

Tier 1 Price Increase - March 28, 2023
Tier 2 Price Increase - June 27, 2023
Guaranteed Swag with registration - August 7, 2023
Lodging & Meal Plan Add-On - August 18, 2023
Bib Transfer - August 18, 2023
Distance Switch/Drop Down - August 18, 2023
Last Day to cancel race registration - August 18, 2023

Event's current local time: 3:08 AM CT


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