At the 2008 Games:
Men Only: Baseball, Boxing
Women Only: Gymnastics - Rhythmic, Softball, Syncronized Swimming
There are 302 events, but only 28 sports (eg. In rowing there is single sculls men, double sculls women, coxless 4 men etc.)
Ski jumping. I think thats the last mens only sport in the Olympics
There were 216 Americans in the 2010 Olympics, consisting of 123 men and 93 women in a total of 15 sports.
In the Summer Olympics, Boxing has been for men only but is scheduled for the 2012 games in London. In the Winter Olympics, Ski Jumping and Nordic Combined (which includes ski jumping) are for men only.
Men sports (races).
11 (7 men, 4 women) in 8 sports
There will be 300 events in 26 sports at the 2012 Olympics.
36 athletes in 9 sports (13 men, 23 women)
Men's and women's ski-cross.
A total of 113 athletes, 79 men and 34 women, competed in 19 sports,
311 men competed in those Olympics in Athens. They were all men.
In The Ancient Olympics only men were. In the Modern Olympics Women were only aloowed to compete from 1930 onwards