By Ian Bush

PHILADELPHIA (CBS) – There’s a series of pavement-pounding events this weekend to benefit a local nonprofit that uses running to help the homeless find jobs and housing.

Back On My Feet has expanded to nine cities since getting its footing in Philadelphia.

“We have about 500 or so active members and we’ve helped over 500 people achieve self-sufficiency in their lives.”

Founder and CEO Anne Mahlum says they’re hoping to raise more than $300,000 tomorrow and Sunday with everything from a glow-in-the-dark midnight run to a rise-and-shine pajama run.

“There’s an ultra-marathon where we have folks running for the entire 24 hours,” to see how many 8.4-mile laps around the Schuylkill River loop they can complete (the record is 146 miles).

Details on how to race — or volunteer — at 20in24.com.