The 50-year-old Brit posted this image to Instagram of his ripped physique ahead of the gruelling Kailua-Kona World Ironman Championship.
The world’s premier Ironman competition on Hawaii’s big island incorporates a 3.8km swim, a 180km bike ride and a 42.1km run.
“One of the most incredible feelings ever sat in the water on the start line minutes before the cannon goes off ... good luck to all the athletes taking part and a big thank you to all the supporters and helpers,” Ramsay wrote.
The post has since been like by 95,000 people and serves as competition for 62-year-old Greg Norman, who back in July showed off his incredibly fit body in a naked Insta pic.