Three races.One riverside course.
Grab your running crew and take on Newington. Half marathon, 10K and 5K across three race days.
RUN21 Sydney Series
The race days
Same course, three chances to run it. Enter one, or take on all three.
Choose your distance
Enter now
Early bird pricing while it lasts. Transponder timing with splits every 2.5km, and a limited-edition finisher medal on every entry.
What's included
Why you'll love it
See you at the start line
Be part of the RUN21 community. Newington Armory, Sydney.
Join us for three beautiful spring mornings at Newington Armory, Sydney Olympic Park.
Run 21 Sydney is a boutique half marathon, 10K and 5K series created for runners and walkers chasing their next personal best.
It also brings a new innovation to running and walking events: you choose your own starting wave.
The first wave departs at sunrise, with additional waves every 15 minutes. Rather than being locked into one mass start, you pick the time that suits your body clock, your preparation and your rhythm.
Or the sleep-in. Entirely up to you.
- 3Race days
- 2.5KMSplits & aid stations
- 15MINBetween waves
A boutique event built for performance
Run 21 Sydney is not a rack, pack and stack mass-participation event.
The field is deliberately capped to create a calmer, more personal race-day experience — more room on the course, easier access to aid stations, and less congestion from the first kilometre to the last.
A flat and fast course
With only around 50 metres of elevation gain per 5KM lap, this four-lap course is genuinely flat and fast.
The route flows through the parkland and waterfront surroundings of Newington Armory, giving you the ideal setting to settle into a strong rhythm and chase your next PB.
Track every 2.5K split
Run 21 Sydney records your time every 2.5 kilometres, giving you a detailed picture of how your race unfolded.
You will see where you held your pace, where you gained time, and where you may have started to fade. That is something valuable to work with before the next event in the series.
Set your PB at Race One, learn from every split, then come back and beat it at Races Two and Three.
Aid stations every 2.5 kilometres
Aid stations are positioned every 2.5 kilometres, so hydration and support are always close by.
There is no need to carry bottles, gels or extra nutrition for the entire race. On each lap your support crew can hand your nutrition directly to you, or you can leave it on the dedicated nutrition table for quick and easy access.
Designed for runners and walkers
Run 21 Sydney is for walkers too.
Gather a group of friends, choose your distance, and enjoy a beautiful spring morning at Sydney Olympic Park.
Whether you are racing for a PB or simply enjoying the course together, you will receive the same welcoming and supportive race-day experience.
A finish line worth sharing
Your family and friends can be there to welcome you across the finish line and present you with your well-earned finisher medal.
Flexible start times, a capped field, regular timing splits, easy access to nutrition and a flat, fast course all combine to create a race designed around the people taking part.
Places are limited, and the series will sell out. Do not miss out.
Train safely, take care, and we will see you on the start line — at the time of your choosing.
The Run 21 Sydney Team