Five laps of the same 20-mile loop used by the 100K and 20 Miler, starting and finishing at the Ireland Shelter. About 95% singletrack; the first lap includes the Sugarloaf Mountain climb, which later laps bypass.
RD-published elevation gain is per loop, not per course, and is a range rather than a single figure: "roughly 3200 feet of elevation gain per loop" in the course description, revised elsewhere on the same page to "3100-3200 feet per loop" after a course tweak (removal of the Shrake Road section). The first of the five laps includes the Sugarloaf Mt climb; laps 2-5 bypass it, so per-lap and course-total elevation are not uniform across the day. No official total elevation gain for the full 100-mile distance has been published, so elevation_gain_ft/published_gain are left null rather than computed by simple multiplication.
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.
| Mile | Station | Cutoff | Crew | 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 | ? | ● | ● | ● | ? | 3.60 |
| 63.60 | Rocky Road | ? | · | ● | · | ? | 4.90 |
| 68.50 | Lick Run | ? | ● | ● | ● | ? | 5.80 |
| 74.30 | Lick Run | ? | ● | ● | ● | ? | 3.00 |
| 77.30 | Rocky Road | ? | · | ● | · | ? | 2.70 |
| 80.00 | Ireland Shelter | 10:00am | ● | ● | ● | ? | 3.60 |
| 83.60 | Rocky Road | ? | · | ● | · | ? | 4.90 |
| 88.50 | Lick Run | ? | ● | ● | ● | ? | 5.80 |
| 94.30 | Lick Run | ? | ● | ● | ● | ? | 3.00 |
| 97.30 | Rocky Road | ? | · | ● | · | ? | 2.70 |
| 100.00 | Ireland Shelter | 6:00pm | ● | ● | · | ? | ? |
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