Race Details

The Lake Murray Endurance Run will take place on October 29-30, 2022 at Lake Murray State Park near Ardmore, Oklahoma. Lake Murray State Park is Oklahoma’s first and Largest State Park, with over 12,500 acres of forested rolling hills surrounding Lake Murray. The park has an extensive trail system that consists of over 30 miles of trail. The trails offer a wide variety of terrain ranging from simple and flat, to moderately difficult.

Race Details

All races will start and end at Duke’s Forest Campground at Lake Murray State Park, near Ardmore, OK.

Complete details can also be found in the 2021 race guide.

Race Schedule

All Activities below take place at Duke’s Forest Campground.

Friday, October 28

3:00 – 6:30 p.m. Packet Pick up and registration
2:00 – 6:00 p.m. Drop Bag Dropoff (Drop bags will not be delivered to remote aid station(s) after 6:00 p.m. No Exceptions!)
5:00 p.m. 100 Mile/100K Race Briefing

Saturday, October 29

5:00 a.m. Packet pick up and same-day registration opens (if the race is not sold out)
6:00 a.m. 100-Mile/100K Start
7:15 a.m. 50K Pre-race brief
7:30 a.m. 50K Start
7:45 a.m. 25K Pre-race brief
8:00 a.m. 25K Start
8:10 a.m. 5-mile Start

Packet pick up and same day registration will be open until 8:00 a.m. However, we recommend that all participants arrive early to allow time to pick up your packet, race chip, and get ready for your race.


We award the top 3 male and female finishers, and the top Master’s finisher (40+), in the 100-mile, 100K, 50K and 25K distances. Top male and female finishers in the 5-mile.

100 Mile

  • Sub-24 Finisher Buckle for all participants who complete the course under 24 hours.
  • Finisher Buckle for all participants who complete the course in under 30 hours.
  • All 100-miler finishers will also earn special finisher gear with race logo and year, mailed to their home after to the race.

100 K

  • Finisher Buckle for all participants who complete the course under the time limit.

50 K, 25 K, 5-mile events

  • Finisher award unique to their event


All participants who register before October 9th will be guaranteed a race shirt.


See full course details including distance between aid stations on our course page.

Aid Stations

This is a cupless race. Please bring your own hydration device to carry and consume fluids on the course. Water and endurance drink will be available at all aid stations along with favorite food items such as bananas, oranges, peanut butter and jelly sandwiches, potato chips, Oreos, fig cookies, soda, Salt Stick and much more.

Aid stations are between 2.8 and 5.6 miles apart. For a full chart, check out details on the course page. The 5-mile event does not have an aid station.

Drop Bags

Drop bags are encouraged only for the 100-mile and 100K events and will be allowed at the Start/Finish and at the Buzards Roost aid station. The size of the drop bag for Buzards Roost should be a manageable size and weight for our volunteers. More details will be included in the race guide and emailed to all registered runners closer to race date.

Time Cut Off

50K runners have until 10 p.m.; 100K runners and 100-mile runners must leave Duke’s forest campground for the last segment (5 miles) of the race  no later than 11:10 AM on Sunday Morning. This should allow for close to 32 hours to complete the 100 mile course. Anyone who leaves Duke’s Forest by 11:10 AM will be allowed to complete the race as long as they continue to make forward progress (i.e. no leaving the aid station and taking naps on the final loop.)

All participants must start their final loop no later than 3 a.m. on Sunday (mile 68.2 for the 100-mile). All must have passed the Tucker Tower aid station (mile 81.9) no later than 6:15 a.m. on Sunday.


100-mile runners are allowed to have a pacer starting at mile 53, or after dark. 100K runners are only allowed pacers after dark. Sunset is around 6:40 p.m.

Pacer exchange points will only be at Duke’s Forest or Buzards Roost aid stations. If you plan to have a pacer meet you at Buzards Roost aid station, please arrange for a ride to the aid station. Parking is limited.

Registration and Refund Policy

We understand that things come up. If you can no longer run the race, if you let us know more than one month in advance, you will receive 100% race credit for another Blaze Trails Running event. If you let us know between one month and two weeks prior to race day, you will receive 50% race credit towards another Blaze Trails Running event. We will not allow any refunds or transfers less than two weeks before race day. No exceptions.

Bib transfers to another runner are allowed up until the two weeks prior to the race only if the race has not sold out. If you are interested in transferring your bib to a friend, please contact us immediately. It is very important for the safety of all runners that we have the correct contact and medical information. If the shirt order has already been placed, your friend agrees to accept the shirt size that you ordered. A $15 administration fee (plus transaction fee) will be charged to the person who is accepting the bib transfer. We do not allow transfers if the event has sold out and have a wait list. In that case, we will follow the posted refund policy and allow the next person on the wait list to register. We require transfers to be completed no later than two weeks prior to the race. This allows us to keep our focus on producing the event and other important race details during the race week. If you contact us in the last two weeks to ask for a transfer, we will not reply and the transfer is not allowed. No exceptions.

Refund and/or transfer requests must be made in writing by sending an email to info@blazetrails.com. Refunds are only processed as credit to a future event.

I further understand that I am not entitled to a refund if the race director and/or race officials are forced to cancel the race due to any participant safety issue on the course that is out of the race organizer’s control. This may include, but is not limited to flooding, lightning or any other weather condition that makes the course unsafe for participants.

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