Friday, October 23, 2026 – Saturday, October 24Jamestown, TN
No Business 100
1 event
- No Business 100161.9KUltraStarts 7:00 AM
Location
Approximate, from the race's ZIP code.
Typical race-day weatherIdeal weather · 95/100
- High / low
- 67° / 44°F
- 19° / 7°C
- Humidity
- 70%
- Dew point 44°F
- Chance of rain
- 29%
- Wind
- 5 mph
- Average
- Usually ideal weather for an ultra.
Averages for this area and time of year over the last 20 years, from NASA POWER data. Not a forecast.
Past results
- 14% slowerFinish times are typically 14% slower than at other 100-mile races.3 years, 461 finishers; men and women compared separately.
- 11% slowerFinish times are typically 11% slower than at other trail 100-mile races.1 year, 192 finishers; men and women compared separately.
| Year | Event | Finishers | Median | Men | Women |
|---|---|---|---|---|---|
| 2025 | 100 Miler · 161.9K | 192 | 30:41:22 | 30:27:04 | 31:51:06 |
| 2024 | 100 Miler · 164.6K | 149 | 31:57:11 | 31:07:54 | 32:32:47 |
| 2023 | 100 Miler · 164.6K | 171 | 31:14:06 | 30:45:17 | 32:18:50 |
| 2022 | 100 Miler · 164.6K | 141 | 30:08:19 | 29:37:05 | 30:43:51 |
Median finish times from results published on RunSignup. Keyrace keeps only these summaries, never individual results. A fast or slow field affects times as much as the course does.