Saturday, Apr 23, 2022 @ 8:00 AM

The Eternal Damnation Backyard

3 State Park Road

Sylvan Grove, KS Last Man Standing

Registration closes: Wed, Apr 20 @ 11:59 PM


Located at Wilson State Park (Hell Creek area) outside of Dorrance, KS. Start/finish is in the Switchgrass Mountain Bike Trail parking lot.


The course starts with 3/4 of a mile on pavement where runners will have an opportunity to spread out before switching to single track. After that, it's 100% single track mountain bike trail. The trail runs beside beautiful Wilson Lake, the clearest lake in Kansas.

Wilson lake has been rated the best lake in KS
Additionally, the Switchgrass Mountain Bike Trail has been rated the best mountain bike trail in KS and is the only EPIC rated mountain bike trail between the Ozarks and the Rockies.
Each lap will start and end in the Switchgrass Mountain Bike Trail Parking Lot.

Come run on this beautiful and challenging course in the Midwest!


Rules for the Backyard Ultra
1) Course
. Loop or out and back
. Must be 4 miles 880 feet in length
. Metric equivalent 6.7056 kilometers
2) Starting Corral
. Measured to fit entire starting field
. Corral stays the same size thru out the event
. Participants must be in the starting corral at the bell
3) Starts
. Each loop starts precisely 1 hour after the last
. Warning must be given 3, 2, and 1 minutes prior to start
. All competitors must start at the bell (no late starts)
4) Loops
. Except for restrooms, competitor may not leave the course until each loop is completed
. No non-competitors on the course (including eliminated runners)
. No personal aid during a loop (common aid stations are allowed)
. Each loop must be completed within an hour to be counted… including the final lap.
. No artificial aids (including trekking poles)
. Slower runners must allow passes.
5) Timing
. Timing of the loops is optional
6) Winner/Results
. The winner is the last person to complete a loop
. All others are technically DNF
. Results of each runner in terms of distance covered are to be given.
. If no runner can complete one more loop than anyone else, there is no winner.
7) Cap
. Race must be open ended.


All runners will receive a badass Eternal Damnation shirt.
All runners will also receive a custom Eternal Damnation finishers plaque with the distance they covered burnt in on site.
Additional freebie items will likely be given in swag bags.
A special award will be given to the last runner standing.


The start finish area will be an awesome environment – each runner can bring 2 crew members (highly recommended). There will plenty of space to set up a pop-up for you and your crew. If you are eliminated feel free to stick around, have a few beers (BYOB), and cheer other runners on!

You will essentially be self-sustained. We will bring water and an electrolyte/fuel. Other than that you are on your own. Bring all your own food.

We will assign each individuals finishing mileage in UltraSignup. A DNF will NOT go on your record, instead it will be the total miles accumulated. We want anyone and everyone to come out and see how many miles they can run on this challenging and beautiful course! Come set a PR! Come run a few laps and join in and cheer on who's left!

Our #1 goal for this race is to create an amazing trail experience where people can come out and find a new personal best. And afterwards, hang out and cheer others on as they attempt to do the same. Whether you hope to get 4.2 miles or 100 miles we want you to come out and join the fun.

Our second goal for this race is to make it a “ticket” event for the BIG BACKYARD WORLD CHAMPIONSHIPS in Belt Buckle, TN. This is a complicated process that we are still trying to figure out. We have already been in contact with The Big Backyard Championships. But, in other words, the winner of Eternal Damnation could eventually secure a spot in the Big Backyard World Championships.

We will abide by all rules exactly to their specifications and be in contact with them frequently in an effort to make this happen.

We will announce every time one of the 66 spots is filled, as well as who filled it, on our FB page.

No Refunds. No deferrals. No exceptions. Must be 21 to play.


Presented by Ultraverse Supplements
Endurance Evolved

Local time: 3:10 AM
Ask a Question