by xenya

About 245 athletes (all men) participated in the First Modern Olympiad in Athens.
Canada is the only host country not to win a gold medal (Montreal 1976).
3 sports have appeared in every single Olympic Games - Track and Field, Fencing and Swimming.
3 athletes have won four gold medals in the same individual event - Al Oerter (USA), Carl Lewis (USA), Paul Elvstrom (DEN).
Most golds won in a single Games - 7 by swimmer Mark Spitz (USA) in 1972.
Most golds won by a female in a single Games - 6 by swimmer Kristin Otto (GDR)
Most medals won in a single Games - 8 (3-4-1) by gymnast Aleksandr Dityatin (URS) in 1980 and swimmer (6-0-2) Michael Phelps (USA) in 2004
Most all-time gold medals won - 9 by Paavo Nurmi (FIN), Larisa Latynina (URS), Mark Spitz (USA), Carl Lewis (USA).
Most all-time medals won - 18 (9-5-4) by gymnast Larisa Latynina (URS) over a span of three Olympics (1956-1964)
Most all-time medals won by a male - 15 by gymnast Nikolai Andrianov (URS) (1972-1980)
Most all-time medals won by a female - 18 by Latynina, 12 by Jenny Thompson
Most medals won in a single Games by a female American - 5 by swimmers Natalie Coughlin (2004), Shirley Babashoff, and Dara Torres; gymnasts Mary Lou Retton (1984) and Shannon Miller (1992); and track star Marion Jones (2000).
Most all-time medals won by an American - 12 by Jenny Thompson, 11 by Mark Spitz/Matt Biondi/Carl Osburn, 10 by Gary Hall (5-3-2)
Number of nations that have never won a medal - 86.