Is crew access allowed on the 100K course?

Yes, crew access is allowed on the 100K course. "Crew Access is allowed at The Start/Finish (Ireland Shelter), and Lick Run Aid Stations. Please DO NOT access your runner at Rocky Road or anywhere else on course (unless and emergency). These rules are for safety and law abiding."

Are drop bags allowed on the 100K course?

Yes, drop bags are allowed on the 100K course. "Runners are permitted to have one drop bag per Aid station for a total of 3 drop bags (2 of which you can access twice per loop). Drop bags permitted: Up to a 15L dry bag. Gallon Ziplocks are great. No coolers."

Are pacers allowed on the 100K course?

Yes, pacers are allowed on the 100K course. A pacer may join starting at mile 20. "100k and 100 mile runners are welcome to have pacers anytime after the first lap. One pacer at a time. Each pacer must be registered as a pacer on UltraSignup (under volunteers). Pacers must wear pacer bib (one Pacer bib per runner, can be shared from pacer to pacer). Pacers must access runner from either the Ireland shelter or Lick Run."

Ultras · US · OH

The Big Deal at the Great Seal

100K

Registration open

Next edition. The 2026 edition (most recently completed) sold out; per RunFluent's Facebook page, "2026 Big Deal at Great Seal is SOLD OUT!" (posted Apr 16, 2026). Registration for 2027 is open as of this research (Aug 2026), with no indication of a lottery or waitlist.

Race dateMay 1-2, 2027

Duration2 days

Start6:00am

Whenin 197 days

First held2023

Who's going to The Big Deal at the Great Seal?

I'm running itPlan your weeks and your aid station times I'm crewingWhen to leave, where to park, at every stop I'm pacing or cheeringAsk your runner for their Out Here link

Free. You can start with nothing.

Official website Entry Aid stations Notify me if this race changes

Free, and always will be. NavRun makes money from race-day planning for runners who want it, never from this. Ultras change constantly, sometimes the morning of. Always confirm with the race director and the official website before you rely on anything here.

Distance 100K

Climb not checked yet

Descent not checked yet

High point not checked yet

Time limit not checked yet

Aid stations 17

Started not checked yet

Finished not checked yet

Finish rate not checked yet

The course

Where it goes multi-loop · 17 aid stations

Three laps of the same 20-mile loop used by the 100 Mile and 20 Miler, plus a 2-mile finishing loop, starting and finishing at the Ireland Shelter. About 95% singletrack.

Same loop-elevation caveat as the 100 Mile course: RD-published gain is per 20-mile loop ("roughly 3200 feet", revised to "3100-3200 feet" after a course tweak), not per course, and the first lap's Sugarloaf Mt climb is bypassed on laps 2-3, so course-total elevation is not simply 3x the loop figure.

The race

What this one is

A trail race at Great Seal State Park outside Chillicothe, Ohio, on a hilly 20-mile loop that is roughly 95% singletrack. As of the 2026-2027 cycle it offers four distances built on repeats of that loop: 100 Mile (5 laps), 100K (3 laps plus a 2-mile finishing loop), 20 Miler (1 lap) and a 5K on a separate short loop. Earlier editions (2023-2025) were run as 50K/25K/5K instead.

RD Chris Stangle ran his first ultra in Great Seal State Park and later became the first person to host an ultra there in several years, after a long gap with no ultras in the park at all. He trained in the park daily before moving to Florida, and had his first date with his now-wife and co-RD, Ivi Stangle, there. The race has run each year since 2023 (per UltraSignup's published results history: 2023, 2024, 2025, 2026). It began as a 50K/25K/5K event; the 2026 and 2027 editions switched to a 100 Mile / 100K / 20 Miler / 5K format, the 100-mile distance having been part of Chris Stangle's plan for the race from early on.

Getting in

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

Lottery: No ultrasignup.com

Lottery opens: not checked yet

Lottery draw: not checked yet

Field cap: not checked yet

Registration: UltraSignup ultrasignup.com

Qualifying: not checked yet

Minimum age: not checked yet

Transfers: not checked yet

Deferrals: Yes ultrasignup.com

Running, crewing, pacing or still deciding

How NavRun helps with The Big Deal at the Great Seal

You are running it

You reach Lick Run, mile 28.5, and you already knew this morning what time that would be.

An arrival time for all 15 stations, worked out from your own training.

Start free →

You are pacing

You are at Ireland Shelter, mile 20, warm and fed, and you know you have 42 miles ahead of you.

The same sheet says when they reach you.

You are deciding

You find out The Big Deal at the Great Seal 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 ultrasignup.com

Vehicles per runner: not checked yet

Pacers: Yes, from mile 20.00 ultrasignup.com

Muling: not checked yet

Drop bags: Yes ultrasignup.com

Cupless: Yes ultrasignup.com

Course marking: Fully Marked ultrasignup.com

Night running: not checked yet

Dogs: not checked yet

Headphones: not checked yet

Crew rules: "Crew Access is allowed at The Start/Finish (Ireland Shelter), and Lick Run Aid Stations. Please DO NOT access your runner at Rocky Road or anywhere else on course (unless and emergency). These rules are for safety and law abiding." ultrasignup.com

Pacer rules: "100k and 100 mile runners are welcome to have pacers anytime after the first lap. One pacer at a time. Each pacer must be registered as a pacer on UltraSignup (under volunteers). Pacers must wear pacer bib (one Pacer bib per runner, can be shared from pacer to pacer). Pacers must access runner from either the Ireland shelter or Lick Run." ultrasignup.com

Drop bag rules: "Runners are permitted to have one drop bag per Aid station for a total of 3 drop bags (2 of which you can access twice per loop). Drop bags permitted: Up to a 15L dry bag. Gallon Ziplocks are great. No coolers." ultrasignup.com

Cutoff philosophy: The RD states there is "no additional cutoff for shorter distances" beyond the 100 Mile's 36-hour limit, so no time limit is published for the 100K. ultrasignup.com

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	Ireland Shelter	?	●	●	●	?	3.60
3.60	Rocky Road	?	○	●	○	?	4.90
8.50	Lick Run	?	●	●	●	?	5.80
14.30	Lick Run	?	●	●	●	?	3.00
17.30	Rocky Road	?	○	●	○	?	2.70
20.00	Ireland Shelter	?	●	●	●	?	3.60
23.60	Rocky Road	?	○	●	○	?	4.90
28.50	Lick Run	?	●	●	●	?	5.80
34.30	Lick Run	?	●	●	●	?	3.00
37.30	Rocky Road	?	○	●	○	?	2.70
40.00	Ireland Shelter	?	●	●	●	?	3.60
43.60	Rocky Road	?	○	●	○	?	4.90
48.50	Lick Run	?	●	●	●	?	5.80
54.30	Lick Run	?	●	●	●	?	3.00
57.30	Rocky Road	?	○	●	○	?	2.70
60.00	Ireland Shelter	?	●	●	●	?	2.00
62.00	Ireland Shelter	?	●	●	○	?	?

Same race, other lines

Other distances and other years

Other distances: 100 Mile
20 Miler (20 miles)
5K
5k YOUTH
Adult 5k (5K)

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.

One person has been out there with a camera or a microphone.

Social account

runfluent_fulwise

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.

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.

Where this came from. Every fact on this page records its source and when we last checked it: 230 sources for this race. Hover a source link to read the sentence it came from.

39% of what we track for a course is filled in. The rest says "not checked yet" rather than guessing.

See something wrong or out of date? Suggest an edit
Ran this race? Tell the next runner what you know
Got footage of this course? Send us the link
Are you the race director? Get in touch and we'll make it right.
Anything else: [email protected]

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

Cutoffs move, races get postponed, lotteries open and close. We read the race's own sources and record where every fact came from. Put your email in and we will send you what changed, and where we read it.

No account, and nothing to cancel.

What happens to your email. Nothing else. I do not sell it, and I will not send you anything except this race changing. One click gets you out.

I keep this catalog because the information is scattered and hard to trust. Telling you when it moves is the same job.