Ultra Running Hub Volcano, HI, United States · Thursday, December 31, 2026
Go Big 100 Mile Race
What the course asks
DUV results for the 2023 edition (100mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Typical conditions, December
Regional 2001-2020 average for December — NASA POWER, grid elevation 482 m. Not a forecast.
Results history
| Year | Race | Finishers | Men's winner | Women's winner |
|---|---|---|---|---|
| 2023 | 100mi | 3 | Caleb Maisonville · 23:10:03 | — |
| 2021 | 100mi | 1 | Stanley Fortuna · 31:35:00 | — |
| 2020 | 100mi | 3 | Caleb Baybayan · 21:27:32 | Anna Albrecht · 21:27:32 |
The field grew 200% between 2021 (1) and 2023 (3). 0% of the 2023 field were women.
DUV results for the 2023 edition (100mi) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.
Course notes
- terrain This is a fast & flat course. Expect fast, runnable sections where rhythm is key.
- gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.
- nutrition For 100km+ efforts, prioritize real food at aid stations to prevent palate fatigue.
Gear for this race
Chosen for 161 km of trail with 1,500 m of ascent.
- Trail Running Shoes 161 km of trail — cushioning that is still there in the last quarter.
- Race Nutrition Past 161 km the palate quits before the legs do — carry more than one flavour.
- Hydration Vests Flask capacity for 161 km, without the bounce.
- Headlamps A 48 h limit puts you out there after dark.
- Accessories Chafe and blisters end more 161 km races than fitness does.
Overview
Organised by Hawaii Mountain Running in Volcano, HI, the Go Big 100 Mile Race pairs a remarkably forgiving timetable with a tiny starting group. Its 48-hour time limit requires a sustained pace of only 17.9 minutes per kilometer, establishing a cut-off that is more generous than 90% of 100-mile peers and tighter than just 10%.
Out on the 161-kilometer paved route, runners face 1500 meters of total elevation gain—amounting to an average climb of 9.3 meters per kilometer—over rolling hills that remain fully runnable. The experience offers extreme solitude on the road; with only 3 finishers recorded in the 2023 edition, the event maintains a field that is smaller than 92% of 100-mile races and bigger than just 2%.
Similar races
Other 100 mi trail ultras, closest in distance first.