"Muddy" Mildred Wilson is at it again. The 83-year old with two Tough Mudder races to her name just crushed a third one, becoming the oldest person ever to finish the famous 5K.

The Tough Muddle 5K in Missouri, Wilson's home state, was honored to feature the octogenarian for the third time—in this event, she was raising money to drill a fresh water well in a rural African village.

WS has reported on Wilson's races before: In 2021, when she completed her second 5K, she dedicated it to her late husband Farrell, who was able to see her cross the finish line for her first race in 2019.

"I had watched [her son] do the World's Toughest Mudder in Vegas," Mildred said in 2019, according to local news reports. "He asked me last fall if I would like to do one. I said yes, but, if I do it, I want to be able to really do it. Not just be out there."

Now she's doing it because her son, Danny Wilson, who first inspired her to start doing the Tough Mudders, and is the leader of the youth group working to raise money to drill wells in Africa.

"I will get muddy so others can drink clean water. I would love for you to help me make the vision a reality!!!" Mildred wrote on the GoFundMe page.

The village in question has a single water hole, about the same color as the Tough Mudder ponds that Wilson must crawl through early on in the 5K. If it doesn't rain, her son explains in a video, the villagers must travel over a literal mountain range to find the next one.

So far, Danny and Mildred have raised $650 of their $5,000 target, with the Tough Mudder organization donating $500.

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