Diamond Harbour, New Zealand · Sunday, October 18, 2026

Fixed Distance 50K

Crater Rim Ultra 53km

45 days away
53 km Distance
not publishedn/a Climbing
2.7 est Grit · Entry level

Calculated from 53 km alone — the organiser has not published an elevation profile. Read 2.7 as a floor, not a verdict.

43.6289° S, 172.7254° E © OpenFreeMap © OpenMapTiles Data from OpenStreetMap

What the course asks

Field size ~232 Large. Rarely out of sight of another runner.

DUV results for the 2025 edition (53km) — finishers only. Starters are not published, so the field was at least this big and no finish rate can be given.

Typical conditions, October

Daytime high 16°C
Night low 6°C
Rainfall Mostly dry
Daylight 13 h 22 m of light

Regional 2001-2020 average for October — NASA POWER, grid elevation 76 m. Not a forecast.

The Aid Station

Course-specific beta from the community

👟 gear

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

By UltraHub Expert

Gear for this race

Chosen for 53 km of trail.

  • Trail Running Shoes 53 km of trail — cushioning that is still there in the last quarter.
  • Race Nutrition 53 km of self-supported fuelling between aid stations.
  • Hydration Vests Flask capacity for 53 km, without the bounce.
  • GPS Watches Battery life first — a 53 km day outlasts most full-GPS modes.
All gear guides →

Course Notes

The Crater Rim Ultra is a series of races up and around the crater rim of the beautiful and picturesque Christchurch Port Hills in New Zealand

Similar races

Other 50K trail ultras, closest in distance first.