This New York man is challenging you to run 50 miles in 31 days in memory of his dad: 'No excuses'

Brian Lewis' dad died from brain cancer when Brian was 10-years-old. He later created the 50/31 challenge in his dad's honor by raising funds for the National Brain Tumor Society.

A 26-year-old man from New York, is asking strangers, his family and friends, to "step out of their comfort zones" and join what he calls the 50/31 challenge – a month-long fitness and fundraising event which raises money for the National Brain Tumor Society.

"When I was 10-years-old, I lost my dad to brain cancer," Brian Lewis, a resident of New York, New York, told Fox News Digital.

"I thought this would be a good opportunity to kind of give back and do something good."

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Lewis started the challenge in 2020 by encouraging loved ones to run 50 miles in a span of 31 days.

Brian Lewis (pictured second from right) and his friends are participating in the 50/31 challenge — running 50 miles in 31 days, to honor Lewis' dad, Marc Lewis, who died in 2007. (Fox News)

Since then the challenge grew into something greater, by raising support during the month of May, which is Brain Cancer Awareness Month.

This May in 2023, Lewis has so far raised $12,251 through 50/31 challenge participants. The goal is $50,000.

"In 2021 [I] thought it would be a good idea to open it up to the public and rally people together for a good cause and get people moving," Lewis said.

Lewis saw over 600 individuals join the cause in 2022. The participant count for 2023 has swelled to 1,052 and is still growing.

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Lewis' father died from brain cancer when he was just 10-years-old.