Kitesurfing is the newest sport in the Summer Olympics. It will make it debut in the 2016 Summer Olympics in Rio de Janeiro.
Golf and Rugby will be the newest Olympic sport at the summer Olympics in London in 2012.
Women's boxing.
womens boxing
Tennis
Beach Volleyball.
Womens boxing
Wrestling is a Summer Olympics sport.
I imagine you mean newest women's Olympic sport which is boxing.
you can do it all year round but it is classed as a summer sport in the olympics.
At the 2008 Games, that would be softball.