Southern Cross 24 Hour
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Event Details
About This Event
Test your limits at the Southern Cross 24 Hour — SA's premier timed ultra endurance event. Choose 6, 12, or 24 hours and run as far as you can on a certified loop course in Felixstow, Adelaide.
Course Description
The Southern Cross 24 Hour is a timed loop event held at Adelaide Eastside in Felixstow, a leafy inner-eastern suburb of Adelaide. Participants complete repeated loops of a measured course, accumulating as much distance as possible within their chosen time limit — 6, 12, or 24 hours. The flat, accessible terrain suits both those chasing personal bests and first-timers entering the world of ultra endurance. A central hub with timing mats, crew access, and on-course support makes it easy to manage nutrition and pacing across the hours. The night section of the 24-hour event adds a unique atmosphere, with Adelaide's clear autumn skies overhead and fellow runners keeping spirits high through the small hours.
Quick Facts
Getting There
Felixstow is located approximately 6 km east of Adelaide CBD, easily reached via Magill Road. On-site or nearby street parking is typically available for participants and crew. The area is serviced by Adelaide Metro bus routes along Magill Road. Arriving at least 45–60 minutes before your start time is recommended to allow for check-in, gear setup, and a proper warm-up.
Weather & What to Pack
Late March in Adelaide marks the transition into autumn, bringing more comfortable running conditions after the summer heat. Expect daytime temperatures of 20–26°C cooling to 12–17°C overnight — ideal for sustained effort but cool enough to require a light layer for the 24-hour night section. Rainfall is possible but generally low. Sunscreen and sunglasses are recommended for daytime hours, along with a headtorch and warm layer for overnight running.
Frequently Asked Questions
How does a timed ultra event work?
Rather than running a fixed distance, you complete as many laps of the course as possible within your chosen time limit — 6, 12, or 24 hours. Your total distance is recorded at the cutoff. You can walk, rest, or take breaks at any time from the central hub.
Can I have a support crew?
Yes — crew and pacers are typically welcome at timed ultra events. A central pit area allows easy access for nutrition hand-offs, gear changes, and support between laps. Check the official website for specific crew rules and access arrangements.
What should I bring for a 24-hour event?
Plan for multiple weather conditions across the day and night. Essentials include a headtorch (with spare batteries), warm layer for overnight, sunscreen, a varied nutrition and hydration plan, comfortable footwear you can rotate if needed, and a camp chair or sleeping mat for any planned rest periods.
Is the 6-hour option suitable for someone new to ultras?
The 6-hour event is a great entry point into timed ultra running, especially if you have a half marathon or marathon background. It removes the pressure of a fixed distance finish and lets you run at your own pace. Having some experience with running beyond 21 km is still recommended.
How do I register for the Southern Cross 24 Hour?
Registration is managed through the event organiser, Ultra Series SA. Visit the official website at ultraseriessa.com.au for entry links, pricing, and event-day information. Entries often sell out early for timed ultra events, so registering well in advance is advised.
Last updated: 22 February 2026
