Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The men's 100 metres was a track and field athletics event held as part of the Athletics at the 1912 Summer Olympics programme. It was the fifth appearance of the event, which is one of 12 athletics events to have been held at every Summer Olympics. The competition was held on July 6, 1912 and on July 7, 1912. Seventy runners from 22 nations competed. These are the results of athletics competition at the 1912 Summer Olympics. 30 events were contested, all for men only.