Runners in Dubai took to the stairs early on Saturday morning and scaled 36 flights of the Hilton Dubai Jumeirah.
It was a race to the top as participants were released at different intervals to run-up 730 steps.
The official charity for the JBR event was the Rashid Centre for Disabled.
Here, we’ve put together a round-up of Instagram posts from participants:
Did you race?
Let us know – get in touch via Twitter and Facebook.