Cairns, QLD, Australia · Saturday, May 2, 2026

Fixed Distance 50K

Great Barrier Reef GBR100 & GBR60

Race completed

50 km Distance

400 m Climbing

3.1 Grit · Challenging

16.9237° S, 145.7661° E© OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Climbing rate 8 m / km Fast & Flat. This course is relatively flat and fast. Ideal for PB attempts.

Time limit 8 hours 9:36 min/km average. Comfortable. Room to walk the climbs and stop at aid. Tighter than 89% of 50K races. Measured against 1007 races of the same distance. Cut-off calculator →

Field size ~22 Small. Long stretches with nobody in sight.

DUV results for the 2026 edition (45km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, May

Daytime high 24°C

Night low 18°C

Rainfall Showers likely

Daylight 11 h 29 m of light

Regional 2001-2020 average for May — NASA POWER, grid elevation 404 m. Not a forecast.

The Aid Station

Course-specific beta from the community

⛰️ terrain

This is a fast & flat course. Expect fast, runnable sections where rhythm is key.

By UltraHub Expert

👟 gear

With trail terrain, choose a shoe with moderate cushioning for optimal performance.

By UltraHub Expert

Gear for this race

Chosen for 50 km of trail with 400 m of ascent.

Trail Running Shoes50 km of trail — cushioning that is still there in the last quarter.
Race Nutrition50 km of self-supported fuelling between aid stations.
Hydration VestsFlask capacity for 50 km, without the bounce.
GPS WatchesBattery life first — a 50 km day outlasts most full-GPS modes.

Brooks

Catamount 3

RunRepeat found the Brooks Catamount 3 to have a cozier upper that enhances the overall fit, though breathability and durability could be better. iRunFar noted…

★★★★★ 4.5

Adidas

Terrex Agravic Speed Ultra

★★★★★ 4.5

Maurten

Gel 100

Hydrogel technology for 25g carbs per gel with minimal GI distress.

$3.5 ★★★★★ 4.7

Salomon

ADV Skin 12

Industry-standard 12L race vest with front flask pockets and minimal bounce.

$180 ★★★★★ 4.8

Garmin

Enduro 3

Ultra-endurance GPS watch with solar charging and 300+ hour battery in GPS mode.

$900 ★★★★★ 4.8

All gear guides →

Course Notes

Landschaftslauf in die Dämmerung, Startzeit: 18:00 Uhr am Bahnhof Otzberg-Lengfeld, durch die Felder in Otzberg. Wiesenwege, Asphalt und Schotter. Pflicht: Taschen-oder Kopflampe!!!

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