The men's 100 metres sprint event at the 1948 Olympic Games in London, England, we held at Wembley Stadium on 30 and 31 July. Sixty-three athletes from 33 nations competed; each nation was limited to 3 runners by rules set at the 1930 Olympic Congress. The final was won by American Harrison Dillard, in a photo finish. Lloyd LaBeach of Panama won his nation's first medal in the men's 100 metres, a bronze. This was the first time a photo finish camera was used at an Olympic Games. The photo finish equipment consisted of a photoelectric cell, called the Magic Eye, produced by Swiss watchmaker Omega and a slit photography camera produced by the British Race Finish Recording Company. Men's 100 m at the 1948 Summer Olympics in London — the final on July 31, 1948. 🥇 Harrison Dillard (USA) · 🥈 Barney Ewell · 🥉 Lloyd LaBeach Wiki link