Today's the day.

Nedd Brockmann is launching an incredible effort to run 1000 miles in 10 days.

The boy from Bedgerabong has already raised $2.5 million for homelessness charity Mobilise by running from Australia's west coast to east, his new challenge is event more intense.

It will require running 160km a day - at Sydney's Olympic Park athletic centre - for the 10 days.

"I'm super pumped for this challenge and incredibly grateful to the Forbes community for their overwhelming support," Nedd said.

"While I won’t be able to attend the Charity Ball Friday, I’m blown away by the effort and dedication to help raise money for We Are Mobilise.

"I can't wait to see all the weapons in Forbes tackle their own Uncomfortable Challenges at the end of the month!”

Forbes will honour Nedd's effort with the fundraiser Forbes gala ball on Friday night, where our community can support the cause and learn more from Mobilise founder Noah Yang.

The challenge is also out there to everyone to take on an uncomfortable challenge for 10 days this October, with the goal of raising a combined $10 million for homelessness prevention in Australia.

The rules are simple: you must choose a challenge that is uncomfortable, and you must stick with it for 10 days straight from October 20 to 29.

Sign up online at www.neddsuncomfortablechallenge.com/

Funds raised support Mobilise, whose vision is to transform the lives of 10,000 Aussies by 2030.

With five groundbreaking initiatives launched since 2023, they're just getting started.

"I'm so excited for this run, it's overwhelmed me for so long," Nedd said in an instagram video in the lead up to the launch.