In 2026, Rhino Boy Chris ran 132 marathons in one rhino suit and raised more than £50,000 for rhino conservation, setting a Guinness record along the way

Chris Green, popularly known as the Rhino Boy, crossed the finish line of his 200th marathon at the TCS London Marathon in April 2026 and individually completed 132 in costume. This earned him recognition from Guinness World Records as the record holder for the most marathons completed in the same three-dimensional costume by a male participant. According to a 2026 London Marathon update, Green’s campaign as a marathon runner has raised more than £50,000 for Save the Rhino International.From marathon running to a conservation campaignGreen’s record was a result of his tireless effort of running in the same rhino costume, and The Green Runners reported last year that in April 2025, Green had already started his preparation for his 113th Marathon run at the London Marathon, leaving 19 more to go. By then, Green already held the Guinness World Record as the fastest marathoner in a mammal costume when he completed the 2021 London Marathon in 4 hours, 6 minutes and 35 seconds.His endeavours as a marathoner have taken him places beyond the track; Green even climbed Mount Kilimanjaro earlier this year as an effort to raise awareness for rhinos under threat and generate support for conservation. Save the Rhino International said the challenge kept alive a tradition tied to the costume, which harks back to 1994, when the first conservation expedition summited the mountain alongside the charity’s founders, Douglas Adams and Kenyan conservationist Michael Werikhe.Green’s conservation efforts have also been translated from track into literary work, having authored a children’s book called Matumaini, The Rhinos’ Hope. The book focuses on a rhino as its central character, and the name Matumaini, which originates from Swahili, translates to “hope”. Green’s intention in writing the book was to use the sales alongside donations to benefit Save the Rhino International, which he revealed on his fundraising page. The charity focuses on supporting conservation projects across Africa and Asia by engaging with local communities and rangers; it seeks to establish rhino populations and address habitat loss.Taking rhino conservation into the communityGreen joined The Green Runners, an organisation with the objective of making marathon running as a sport more environmentally responsible. Speaking in an interview conducted in 2025 with the outlet, he opened on the challenges of reconciling his conservation efforts with the toll of environmental costs, long-distance flights and driving trucks as a profession. “I also work in removals, and I have to drive trucks. I see the good in moving people – both physically and emotionally, in their lives, but if I had my way I’d be a full-time rhino!”The same report noted Green hosted five school visits in April 2025 to educate children about the plight of rhinos, while his effort to hold conversations with the public remains an ongoing project. Green, who donned his moniker as the Rhino Boy, was among the 59,830 athletes who finished the race, and the event, as per estimates from the Olympics, raised an amount above £95 million. Green’s 132-marathon record was confirmed by Guinness World Records, while Save the Rhino International reported that his fundraising had passed £50,000 by April 2026.You use AI every day. Now get your AI Quotient. Take the AIQ test.