There is no "2012 open tennis tournament".
Rafael Nadal won the men's singles and Maria Sharapova won for the woman
There are countless professional tennis tournaments each year. There is no one extremely important tournament. The four grand slams (US Open, French Open, Wimbledon, and the Australian Open) are the biggest tournaments in tennis each year. in 2012 Novak Djokovic won the Australian Open and the three others have not been played yet.
Milos raonic of canada
Rafael Nadal won the US Open in 2010 for men's singles
Rafael Nadal won the tournament. Novak Djokovic was the runner-up.
Svetlana Kuznetsova, Russia
The men's singles at the 2011 Dubai tennis tournament was won by Novak Djokovic. The women's singles at the same tournament was won by Caroline Wozniacki.
Winners of French Open Tennis Tournament 2010 - Men's Single: Rafael Nadal, women' Single: Francesca Schiavone.
Andy Murray, he won the 2012 US Open, defeating Novak Djokovic in five sets.