Michael Phelps won his eight gold medals at the Olympics during the 2008 Beijing Games. This remarkable feat showcased his extraordinary talent and dominance in swimming, breaking previous records in various events, including the 100m and 200m butterfly. Phelps' performance solidified his status as one of the greatest swimmers in Olympic history and contributed to his overall total of 28 Olympic medals throughout his career. His achievements continue to inspire future generations of athletes worldwide.