You have to go back to last year's edition of the Rolex Rankings to find a #1 player with a bigger lead on the #2 player than Ya Ni Tseng has right now. Back then, Lorena Ochoa lead Ji-Yai Shin by 1.73 points; this week, Tseng leads Shin by 1.27 points, a scant .02 larger lead than Ochoa had on Shin on 1 March 2010. The difference, of course, is that Shin was closing fast on Ochoa last year (she'd pass her on 3 May), whereas Tseng is pulling away from her lead chase pack this season.
The other thing worth noting about the early-season Rolex Rankings is that the gap between the top 6 in the world of women's golf and the rest of the best is closing rapidly. #6 Ai Miyazato now leads #7 In-Kyung Kim by only 1.09 points and #8 Michelle Wie by 1.70 points. Back on 6 December 2010 the top 6 in the RR were all averaging over 10 points per tournament; now, only Tseng is, at 11.16 points, only .01 less than Shin was at when play closed on the LPGA last year.
I think it's too soon to start comparing Tseng to Tiger in 2000, as Shane Bacon just did at Devil Ball Golf. After all, her 1st win came against a decidedly minor-league field in Taiwan (even with the occasional LPGAer, JLPGAer, and Futures Tour stalwart rounding it out), her next 2 came against strong-for-the-LET but not LPGA-quality fields, and even her win in the LPGA debut yesterday was against a strong but limited (and, quite frankly, largely rusty) field. If she can keep winning on the LPGA early in the season, I'll give her credit for being as hot as Ai Miyazato was last winter and spring, but until then, I'll simply salute her incandescent play and wish her the best at the Showdown in Singapore this week!
[Update 1 (2/22/11, 2:16 am): See the comments for an interesting exchange between Mike Southern and me; see the HSBC web site for the company Tseng would be keeping with a win this week: Tiger, Annika, and Nancy Lopez!]
[Update 2 (1:10 pm): Stephanie Wei suggests a new nickname for Ya Ni--Queen Bee--and strongly implies she has a profile on her coming out in print pretty soon.]