100k Ultramarathon – Mighty Totara

100k Ultramarathon


You asked. Our answer: "your pain is our pleasure!"
... and the 100K Ultra at the Mighty Totara was born. New for 2024, this distance is a bucket list goal for ultra-runners and we aim to help you achieve it. In fact, there is no better place to achieve this staggering goal than on a beautiful loop course that allows your support crew to provide the highest level of care, support and encouragement on every single lap!

This event kicks off at 8am on Saturday morning with the majority of other starters. Enjoy the massive vibe as several hundred trail runners set off on their own personal journey of discovery. But whilst those in the Backyard Ultra will step off course at the 6.7km, you just keep on running. And running. And running!

The full course features 15 laps of the Mighty Totara and only the most hardened ultra-athletes will reach the finish line before we switch from daytime to night course - fire up the headlights - and run into the night.

Every finisher of the 100K will receive not only the staggeringly awesome Mighty Totara finisher medal, but also the specially minted and unique 100K Ultra halo. Earned!

For Hard-Core Ultra Runners Only!



Saturday morning


100 km

Officially Measured


24 hrs

Until 8am Sunday


Just Run

Gun start/run til finish

 The Course

The 100K Ultra starts on the Mighty Totara Day Time Course (click on the image to view in a pop window) and remains there until 8pm, when participants transition to the Night Time Course (until 5:30am Sunday morning - for any athletes yet to finish - til event completion at 8am).

Important! Both the Day Time and the Night Time course is measured to the standards set down by the New Zealand 100 Marathons Club.

15 Laps

Day/Night Time Course

100.5 km

Actual Distance


Race Info at a Glance

The Basics

Event Date Saturday November 30th
Start Time 08:00am
Time Limit 24 Hours
Distance 100.5KM | 15x Laps of DayTime or NightTime Course
Tickets & Fees See here page

Event Base

Location Totara Park [click for google pin to start line]
Access & Parking See the dedicated Getting There & Parking page.
Toilets Portaloos will be located opposite the Start/Finish line in the communal rest area.
Overnight Stay Is not available to participants in this event.

On Course

Course Map Race on Day Time Course | except, 8pm -> 5:30am race on Night Time Course
Directions Look out for our directional arrows at all turns and intersections. There are no marshals on course and we reccommend carrying a mobile phone at all times in case you get lost or encounter another issue.
Overtaking Please be courteous and move to the side on narrow trail sections when faster runners approach from behind. With Backyard Ultra athletes and relay team members on course you are likely to be passed and pass other more often than you may expect.
Pedestrians & Dogs Please be respectful of other users of the park, they are entitled to be there just as much as you are. Look out for dog walkers and their four-legged sidekicks, particularly where the course skirts the Botanic Gardens, which is a designed dog walking area.
Toilets Portaloos at the event base can be accessed at the start and finish of each lap.
A well appointed set of modern public toilet block with three enclosed units is available in the picnic area near the park entrance (approx. 2km into the lap).
Aid Stations An unmanned refill station - for water only - is situated at the 4km mark (half way around the lap). We will make best efforts to keep this station fully stocked throughout the event but you should not plan your race nutrition around this.
Another refill station is available at the end of each lap where you can refill your bottles with water or PURE sport drink.
There are no cups provided at this event ... you must bring your own water containers.
Race Rules Due to the narrow tracks, we do not allow nordic poles in this event.
See our general Competition Rules here.

Awards & Results

Results 2024 results will be here and updated live throughout the event.
Scan the QR code on your race number to be taken directly to your personal result page.
Scoring Awards and Online Results lists will be based on GUN TIME.
Merit Awards Trophy to first place overall Male & Female.
Participation Awards All finishers receive the 2024 Mighty Totara medal plus a 100K Ultra Halo.
More details here.

Are you ready to go Ultra? ...

... mighty achievements happen at the Mighty Totara.