The couple shared the news on Instagram.
"Today is the one-month anniversary of being happily married to @AimeeMullins! #ilovemywife," Friend, 34, captioned a black-and-white picture with Mullins, who is a double amputee and former champion sprinter.
The 39-year-old Paralympic athlete and world record holder also shared a series of stunning photos from the wedding on Instagram.
"Celebrating one beautiful month of being married to my best Friend! The 1st of May was a gorgeous rainy day with (The Most Reverend!) @eatkinsdiet as our Officiant (The Most Divine) @betonyvernon as our Witnes... An elopement in the field got moved into the compost shed. Our kind of magical day," she wrote.