This is not the "ping pong" you may be used to playing during lazy Saturday's in college (take one look at the video below for proof) -- some smashes can reach 70mph. Table Tennis has been in the Olympics since 1988, with both men's and women's singles and doubles. China has dominated this event (33 medals) since its inclusion, with South Korea in second (15 medals). Sweden is the only other nation to have won a gold. This year China is again an overwhelming favorite (1:15 in men's team, 1:50 in women's team).