Re: Peak Kournikova v. Peak Vaidisova?
Kournikova had a longer career. Nicole retired at such a young age so she didn't have the luxury of being a Tier I finalist. Though Nicole reached the semis of GSs and won 6 titles while Kournikova could only hoped for.
And for doubles, Kournikova won them with the help of Hingis and other doubles GOATs.
and Hingis won with a help of Kournikova, Doubles - it's not like mixed where girls can win with a help of Paes or Mirnyi who are making 90% of game
Career Grand Slam Winner
Wimbledon 2004 ~ US Open 2006 ~ Australian Open 2008 ~ French Open 2012 and 2014
WTA Championships 2004
London Olympics silver medallist
35 WTA titles , including 14 Tier I titles
21 weeks #1 player