Take part in this ultra trail running event at Spencer Park. Competitors must consecutively run the 6.7km lap (20 to 40km vertical) in less than one hour - starting every hour until one person completes 1 more lap than anyone else.
The remaining time after the lap is completed can be used to recover and replenish for the next hour's lap. Are you kraysie enough?
Date: Saturday 11th July 2026.
Start Time: 7.30am.
Location: Spencer Park (100 Heyders Road, Spencerville).
Cost: $160 per person.
Find out more about the Kraysie MidWinter Backyard Ultra event, including how to enter and a training guide. Limited to 250 participants.
This event for kids up to 18 years will be run by Speed Freaks - alongside the Backyard Ultra. 3 distances are available:
- 1km for 8 years and under;
- 2km for 6 to 10 year olds; and
- 6.7km for 11 to 18 year olds.
Date: Saturday 11th July 2026.
Start Time: 10.40am for 8 years and under, 12.40pm for 6 to 10 years, and 2pm for 11 to 18 year olds. Briefing will be held 8 minutes before start.
Cost: $5 for 8 years and under, $10 for 6 to 10 year olds, and $30 for 11 to 18 year olds.
A portion of the entry fee will be donated to Speed Freaks.
Find out more about the Kraysie Kids Races, including how to enter.
- Wicked Rogaines Autumn Series
- The Walking Festival
- Night Racing Series
- Tamariki Shredder Series
- Krank It
- Zonta Yellow Rose Run and Walk
- Skedaddle Trail Run
- Daniel Reese Memorial Relay
- King and Queen of the Crater
- Hanmer Half Marathon
- Dutch Week Orange Bike Ride
- SouthernCross CX Season
- Run Akaroa
- Bottle Lake Trail
- Canterbury Winter Trail Run Series
- Canterbury Duathlon Series
- Selwyn Marathon
- Bridge to Bridge Ultra Marathon
- Lionel Fox Relays
- Bridge to Bridge North Mountain Bike Ride
- Hibburt Park Revel and Run Team Relay
- Krayzie MidWinter Backyard Ultra

