Swimming at the 1908 Summer Olympics – Men's 100 metre freestyle

This was the third appearance of the men's 100 metre freestyle (including the 100 yard event in 1904 but excluding the Intercalated Games in 1906). The event has been held at every Summer Olympics except 1900 (when the shortest freestyle was the 200 metres), though the 1904 version was measured in yards rather than metres.[3]

Two of the six finalists from 1904 returned: gold medalist Zoltán Halmay of Hungary and silver medalist Charles Daniels of the United States. Daniels had beaten Halmay at the 1906 Intercalated Games. Halmay held the world record.

Australasia, Belgium, Canada, Denmark, France, Great Britain, Italy, the Netherlands, and Sweden each made their debut in the event. Hungary and the United States each made their third appearance, having competed at each edition of the event to date.

With a much larger field than in 1904, the 1908 competition expanded to three rounds: heats, semifinals, and a final. The 1908 Games also restored the wild-card system from 1900, allowing the fastest swimmers who did not win their heat to advance. The nine heats consisted of between 1 and 6 swimmers, with the winner of the heat advancing along with the fastest loser from across the heats (all tied swimmers advanced in the case of equal times). There were two semifinals, intended to be of 5 swimmers each but one of which actually had 6 due to a tie in the heats; the top 2 finishers in each semifinal (regardless of overall time) advanced to the 4-person final.[2]

Each race involved a single length of the 100 metre pool, with no turns. Any stroke could be used.

These were the standing world and Olympic records (in minutes) prior to the 1908 Summer Olympics.

World Record	1:05.8	Zoltán Halmay	Vienna (AUT)	December 3, 1905
Olympic Record	1:22.2	Alfréd Hajós	Athens (GRE)	April 11, 1896 (NS)
	1:13.0(*)	Charles Daniels	Athens (GRE)	April 26, 1906 (NS)
	1:02.8(**)	Zoltán Halmay	St. Louis (USA)	September 5, 1904

(*) Intercalated Games

(**) 100 yards (91.44 m)

In the first heat Zoltán Halmay set a new Olympic record with 1:08.2. In the fifth heat Charles Daniels and in the seventh heat Wilfred Edwards equalized the standing world record of 1:05.8. Finally Charles Daniels set a new world record with 1:05.6 in the final.

• Cook, Theodore Andrea (1908). The Fourth Olympiad, Being the Official Report. London: British Olympic Association.
• De Wael, Herman (2001). "Swimming 1908". Herman's Full Olympians. Archived from the original on 4 June 2011. Retrieved 12 May 2006.