top of page


the 21x21x21 challenge
by Sean Conway
a Summer and Winter Solstice half marathon. . . with a twist
WHAT IS THE 21x21x21 CHALLENGE
The idea is simple.
Run 21 kilometres
On the 21st June and/or December
At 21:00 in your local time
That’s it.
You can do it anywhere in the world.
You can run outdoors or on a treadmill.
You can do it solo or with others.
There are two official moments each year:
Summer edition - June
Winter edition - December
Same challenge. Completely different experience.
​
Do both to get the complete medal

WHO'S IT FOR?
This is for anyone who wants a challenge that’s achievable but still meaningful.
If you can run 5 to 10km, you can build to this.
If you’ve never done a half marathon, this is a great place to start.
If you’ve done loads, it’s a different kind of test.
It’s not about elite performance.
It’s about showing up and getting it done.



bottom of page
