Is crew access allowed on the 100K course?

Yes, crew access is allowed on the 100K course. Family and friends are welcome at the start/finish area and the Buzzards Roost aid station. Crew access is allowed at Tucker Tower when the tower and nature center are open, 8:30 a.m. to 4:30 p.m. Drivers who park elsewhere in the park pay the park's parking fees there.

Are drop bags allowed on the 100K course?

Yes, drop bags are allowed on the 100K course. Drop bags are allowed at the start/finish and at Buzzards Roost. Drop bags for Buzzards Roost go to the start/finish packet pick up on Friday by 6:30 p.m. Bags should be a reasonable size and weight (typically shoebox size), not fragile, not leaky, and marked with name, bib number and distance. Bags are returned to the start/finish when the aid station shuts down on Sunday.

Are pacers allowed on the 100K course?

Yes, pacers are allowed on the 100K course. A pacer may join starting at mile 40.8. Pacers may join at mile 40.8, or sunset if sooner. Pacer exchange points are the start/finish and Buzzards Roost only; pacers arranging to meet a runner at Buzzards Roost need their own ride there, because parking is limited. Runners aged 65 and above may have a pacer after completing 50K. Pacers complete the online form by the Thursday before the race and check in at the start/finish to pick up a pacer bib.

What is the cutoff time for the 100K course?

The overall time limit for the 100K course is 27 hours from the start.

Lake Murray Endurance Run 100K 2026: Cutoffs

The course

Where it goes multi-loop · 12 aid stations · rust marks a stop your crew can reach

Runners begin with the 5.6-mile loop north of Tipps Point, then complete the south loop and the north loop two times.

The trails range from simple and flat to moderately difficult sections with rocks and roots.

The race

What this one is

The Lake Murray Endurance Run is held every year in late October at Lake Murray State Park near Ardmore, Oklahoma, with races of 100 miles, 100K, 50K, 25K and 5 miles, all starting and finishing at Tipps Point. Lake Murray is Oklahoma's first and largest state park, 12,500 acres of forested rolling hills with over 30 miles of trail. The trails range from simple and flat to moderately difficult sections with rocks and roots. It is a cupless race, with a buckle for 100 mile and 100K finishers.

Getting in

Getting in Entry, lottery and what the race asks of you before race day.

Lottery: not checked yet

Lottery opens: not checked yet

Lottery draw: not checked yet

Field cap: not checked yet

Registration: UltraSignup blazetrails.com

Qualifying: not checked yet

Minimum age: not checked yet

Transfers: not checked yet

Deferrals: not checked yet

Running, crewing, pacing or still deciding

How NavRun helps with Lake Murray Endurance Run Twenty seven hours, and two stations with a clock on each.

You are running it

You reach Tipps Point Aid, mile 34.1, before its 10:30pm cutoff, and you already knew that this morning.

An arrival time for all 10 stations, worked out from your own training.

Start free →

You are crewing it

You park at Buzzards Roost, and you are standing there when they come in.

One link from your runner, with the stop and the window they arrive in.

You are pacing

You are at Buzzards Roost, mile 40.8, warm and fed, and you know you have 22 miles ahead of you.

The same sheet says when they reach you.

You are deciding

You find out Lake Murray Endurance Run is months of work away, not years, and you enter.

Put in a race you have already run. NavRun shows you where this one sits from where you are.

No account needed →

Crew access, pacers and drop bags

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Crew allowed: Yes blazetrails.com

Vehicles per runner: not checked yet

Pacers: Yes, from mile 40.80 blazetrails.com

Muling: not checked yet

Drop bags: Yes blazetrails.com

Cupless: Yes blazetrails.com

Course marking: not checked yet

Night running: Yes blazetrails.com

Dogs: Not allowed blazetrails.com

Headphones: not checked yet

Crew rules: Family and friends are welcome at the start/finish area and the Buzzards Roost aid station. Crew access is allowed at Tucker Tower when the tower and nature center are open, 8:30 a.m. to 4:30 p.m. Drivers who park elsewhere in the park pay the park's parking fees there. blazetrails.com

Pacer rules: Pacers may join at mile 40.8, or sunset if sooner. Pacer exchange points are the start/finish and Buzzards Roost only; pacers arranging to meet a runner at Buzzards Roost need their own ride there, because parking is limited. Runners aged 65 and above may have a pacer after completing 50K. Pacers complete the online form by the Thursday before the race and check in at the start/finish to pick up a pacer bib. blazetrails.com

Drop bag rules: Drop bags are allowed at the start/finish and at Buzzards Roost. Drop bags for Buzzards Roost go to the start/finish packet pick up on Friday by 6:30 p.m. Bags should be a reasonable size and weight (typically shoebox size), not fragile, not leaky, and marked with name, bib number and distance. Bags are returned to the start/finish when the aid station shuts down on Sunday. blazetrails.com

Cutoff philosophy: not checked yet

Aid stations

Every stop, and what you get there ● yes ○ no ? nobody has checked – does not apply to this race

Mile	Station	Cutoff	Crew access	Bag	Pacer	Med	To next
0.00	Tipps Point NoneSignal wrong?	?	●	●	?	?	5.60
5.60	Tipps Point Aid NoneSignal wrong?	?	●	●	?	?	6.70
12.30	Buzzards Roost NoneSignal wrong?	?	●	●	?	?	5.30
17.60	Tucker Tower NoneSignal wrong?	?	●	○	?	?	5.30
22.90	Buzzards Roost NoneSignal wrong?	?	●	●	?	?	5.60
28.50	Tipps Point Aid NoneSignal wrong?	?	●	●	?	?	5.60
34.10	Tipps Point Aid NoneSignal wrong?	10:30pm	●	●	?	?	6.70
40.80	Buzzards Roost NoneSignal wrong?	?	●	●	●	?	5.30
46.10	Tucker Tower NoneSignal wrong?	?	●	○	○	?	5.30
51.40	Buzzards Roost NoneSignal wrong?	?	●	●	●	?	5.60
57.00	Tipps Point Aid NoneSignal wrong?	6:30am	●	●	●	?	5.60
62.60	Tipps Point NoneSignal wrong?	9:30am	●	●	?	?	?

Driving your crew

Getting your people there 6 stops with directions the race published.

Buzzards Roost mile 12.30

Buzzards Roost is less than a 5-mile drive from the start/finish. Leave Tipps Point and turn left onto 77 S. Drive approximately 2 miles and turn left into Buzzards Roost campground. The aid station will be to the right soon after the turn.

blazetrails.com

Tucker Tower mile 17.60

Tucker Tower is four miles from Buzzards Roost. Return to 77 S and turn left. Drive approximately 2.6 miles and turn left following signs for Tucker Tower. This aid station is closed to traffic when the tower and nature center are closed.

blazetrails.com

Buzzards Roost mile 22.90

Buzzards Roost is less than a 5-mile drive from the start/finish. Leave Tipps Point and turn left onto 77 S. Drive approximately 2 miles and turn left into Buzzards Roost campground. The aid station will be to the right soon after the turn.

blazetrails.com

Buzzards Roost mile 40.80

Buzzards Roost is less than a 5-mile drive from the start/finish. Leave Tipps Point and turn left onto 77 S. Drive approximately 2 miles and turn left into Buzzards Roost campground. The aid station will be to the right soon after the turn.

blazetrails.com

Tucker Tower mile 46.10

Tucker Tower is four miles from Buzzards Roost. Return to 77 S and turn left. Drive approximately 2.6 miles and turn left following signs for Tucker Tower. This aid station is closed to traffic when the tower and nature center are closed.

blazetrails.com

Buzzards Roost mile 51.40

Buzzards Roost is less than a 5-mile drive from the start/finish. Leave Tipps Point and turn left onto 77 S. Drive approximately 2 miles and turn left into Buzzards Roost campground. The aid station will be to the right soon after the turn.

blazetrails.com

Same race, other lines

Other distances and other years

Other distances: 100 Miler (100.4 miles)
50K (31.1 miles)
25K (15.9 miles)
5 Mile (5.1 miles)

What it looks like out there

Somebody has been out there with a camera the tables say the climb is long. these say what long feels like.

2 people have been out there with a camera or a microphone.

Social account

Blaze Trails Running on Instagram

Social account

Blaze Trails Running on Facebook

Social account

These are other people's work and we link straight to them. Watching costs nothing and needs no account. More of them: every race we hold, on film.

Add to this page

What you know every one of these is read by a person before it changes anything

Ran this race? Tell the next runner what you know.

Nobody sees it until we have read it. No account, no sign-in.

Which distance? Leave blank if it applies to the whole race.

Which stop? Leave blank if it is not about one particular stop.

Give it a short title: Optional. Something like “Cal Street, mile 62 to 78”.

What do you wish someone had told you? Write it the way you would say it to someone at the start line.

Were you there? Optional, and it decides nothing. It only tells the next runner where this is coming from.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this note.

Website: Leave this field blank.

See something wrong or out of date? Suggest an edit.

This changes nothing on the page on its own. Somebody checks it against the race first.

Which detail? Optional. Filled in for you when you start from a specific line on the page.

What does the page say now? Copy it as it appears, so we can find it.

What should it say? The corrected value.

How do you know? Required. Where it came from: the race email, the runner manual, what you saw on the day.

A link that shows it: Optional.

Or a photo of it: Optional. A screenshot or a photo of the sign works.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, only so we can come back to you about this correction.

Which distance? Leave blank if it is about the whole race.

Which stop? Leave blank if it is not about one particular stop.

Website: Leave this field blank.

Were you out there? Say which stops a text got out from.

Nobody sees it until we have read it. No account, no sign-in.

What year? Were you there?

Optional, and it decides nothing.

Your phone company:

Which stops did a text get out from?

Leave a stop blank if you did not try, or do not remember.

100 Miler

100K

50K

25K

Tipps Point mile 0.0
Yes
No
Buzzards Roost mile 4.7
Yes
No
Tipps Point Aid mile 10.3
Yes
No
Tipps Point mile 15.9
Yes
No

5 Mile

Tipps Point mile 0.0
Yes
No
Park Office mile 3.1
Yes
No
Tipps Point mile 5.1
Yes
No

Your email:

Optional. Never shown.

Seen a course preview or a film of this one? Send it over.

Somebody watches it before it goes anywhere near this page. What we are after is footage of this course, on the ground. If it would be just as true of any other race, it is not this.

What does it show that the page cannot? Required. A line is plenty. Where the climbs are, what the footing does, what the last twenty miles look like.

Were you there? Optional, and it decides nothing.

What year? Optional.

Your email: Optional, and never shown on the page. Only so we can ask you a question about this one.

Where is it? A YouTube link, a race report, a photo gallery, whatever it is.

What kind of thing is it?

Who made it? Optional, and we credit them on the page.

Website: Leave this field blank.

Have the GPX? Send us the link.

We want the address of the file the race publishes, not the file. We download it from there so the page can say where the line came from.

Are you the race director? Get in touch and we'll make it right.

We read every one of these and we write back. Every fact here carries the source it came from, and the way a wrong one gets fixed is a person checking it against what you tell us.

Lake Murray Endurance Run

Who's going to Lake Murray Endurance Run?

Where it goes multi-loop · 12 aid stations · rust marks a stop your crew can reach

What this one is

Getting in Entry, lottery and what the race asks of you before race day.

How NavRun helps with Lake Murray Endurance Run Twenty seven hours, and two stations with a clock on each.

The rules that shape your day Anything marked "not checked yet" is a gap in what we hold, never a no from the race.

Every stop, and what you get there ● yes ○ no ? nobody has checked – does not apply to this race

Getting your people there 6 stops with directions the race published.

Other distances and other years

Somebody has been out there with a camera the tables say the climb is long. these say what long feels like.

What you know every one of these is read by a person before it changes anything

Which stops did a text get out from?

100 Miler

100K

50K

25K

5 Mile

Ultras change. We will tell you when this one does.