Michael Phelps is widely regarded as the greatest Olympian ever, with 28 Olympic medals, including an unmatched 23 golds. While other legends like Usain Bolt and Carl Lewis are often compared, Phelps's A Systematic Review of the Acute Effects of Exercise on Immune and... Michael Phelps Records Many Medals But No Consensus For Phelps As 'Greatest Olympian' - The New York Times Michael Phelps Age The American swimming legend has collected a staggering 28 Olympic medals, including an unmatched 23 golds, across five Olympic Games from 2000...