Just a fortnight ago, Yani Tseng sat at Commonwealth Golf Club outlining her expectations for 2011. High among her priorities was reaching World Number 1. “I want to be world Number 1. I was trying last year but I could not get there. This year I think I have a very good chance,” she said. A very good chance indeed. Two wins in her opening two starts for 2011 ensured her rise to the top spot on the Rolex Womens&apos World Rankings. Tseng shot a closing 68 to win the ANZ RACV Ladies Masters at RACV Royal Pines on Sunday and will claim the world No. 1 ranking from Korean Jiyai Shin when the rankings are announced on Monday evening (AEDST). Tseng s win comes on the heels of her victory at the ISPS HANDA Women&aposs Australian Open at Commonwealth GC in Melbourne last week, a double previously achieved only by Karrie Webb in 2007. The winner of three majors – the 2009 LPGA Championship and the Kraft Nabisco and British Open in 2010 – said her goal at the start of the year was to be ranked the best player in the world. She advanced from No. 5 to No. 2 with the ISPS Handa Australian Open win and completed the journey at Royal Pines. Now she has her sights set on the US Women&aposs Open. “I am kind of looking for the grand slam from the US Open. I tell my coach I want to be ready for the US Open,” Tseng said. The trick now, she says, is staying there though few would argue that her game is currently in a position to keep her there. “It is so soon,” said Tseng. “I wasn&apost expecting it as quickly as this. I still have another 10 months to go. I just need to be very patient and keep working hard.” The schedule now moves to Christchurch for the Pegasus Women&aposs New Zealand Open, the third event in as many weeks co-sanctioned by Australian Ladies Professional Golf and the Ladies European Tour.