Volcano, HI, United States · Thursday, December 31, 2026

Fixed Distance 50K

Go Big 50 km Race

74 days away
50 km Distance
1,200 m Climbing
4.3 Grit · Challenging
19.4428° N, 155.2340° W © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 24 m / km Rolling. Moderate undulations. Requires consistent effort across varying grades.
Time limit 6 hours 7:12 min/km average. Tight. You are racing the clock from the start. Among the tightest 50K cut-offs we track. Measured against 1058 races of the same distance. Cut-off calculator →
Field size ~3 Tiny. You will run alone for most of it.

DUV results for the 2024 edition (50km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, December

Daytime high 22°C
Night low 19°C
Rainfall Wet — expect rain
Daylight 10 h 58 m of light

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
2024 50km 3 Patricia Mills · 05:45:00 Karen Smidt · 05:14:33
2023 50km 3 Miles Heater · 05:54:00 Sara Anderson · 05:51:00
2022 50km 9 John Melbourne · 04:00:48 Kathryn Ryder · 06:25:00
2021 50km 2 John Lee · 05:16:00 Lynne Mattix · 05:37:00
2021 50km 23 Fernando Cabada, Jr. · 02:50:23 Cat Bradley · 03:32:53
2020 50km 9 Billy Barnett · 03:37:00 Bree Brown · 03:44:00

The field has held steady: 3 in 2023, 3 in 2024. 33% of the 2024 field were women.

DUV results for the 2024 edition (50km) — 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 rolling course. Expect fast, runnable sections where rhythm is key.
  • gear With trail terrain, choose a shoe with moderate cushioning for optimal performance.

Gear for this race

Chosen for 50 km of trail with 1,200 m of ascent.

All gear guides →

Overview

Held in Volcano, HI, the Go Big 50 km Race demands a pace that few standard ultramarathons require. Its 6-hour limit enforces a cut-off tighter than 98% of 50k peers, giving runners a required pace of 7.2 minutes per kilometre to stay in the event.

The route combines 1200 metres of elevation gain—averaging 24 metres of climbing per kilometre—with entirely paved running from Volcano Village down to Black Sands Beach. Despite the continuous tarmac, that profile leaves little room to coast against one of the strictest clocks in the distance category.

It also remains an exceptionally quiet starting line. With a field smaller than 94% of 50k races, participants share the road with only a handful of competitors over the full 50 kilometres.

Similar races

Other 50K trail ultras, closest in distance first.