My favorite sports used to be triathlon and long distance running but now it is tennis. My playing level is 3.0. Once I met Martina Hingis in a park where I was jogging. She was roller blading. We even had a short conversation. I said "Hello Martina". She said nothing... A couple of times I played tennis and table tennis with Judit Polgár, the best woman chess player all over the world. Links: •  Racquet rankings based on tennis elbow safety:  www.racquetresearch.com •  Racquet reviews, shopping:  www.tenniswarehouse.com, www.tenniscompany.com Weeks at Number One, Men (as of November, 2003) Pete Sampras         286 weeks Ivan Lendl             270 weeks Jimmy Connors       268 weeks John McEnroe         170 weeks Bjorn Borg             109 weeks Andre Agassi          101 weeks Lleyton Hewitt         80 weeks Stefan Edberg          72 weeks Jim Courier             58 weeks Gustavo Kuerten      43 weeks Ilie Nastase            40 weeks Mats Wilander         20 weeks Boris Becker            12 weeks Marat Safin               9 weeks Juan Carlos Ferrero    8 weeks John Newcombe        8 weeks Yevgeny Kafelnikov   6 weeks Marcelo Rios             6 weeks Thomas Muster         6 weeks Carlos Moya             2 weeks Andy Roddick           2 weeks Patrick Rafter           1 weeks Weeks at Number One, Women Steffi Graf                   377 weeks Martina Navratilova       331 weeks Chris Evert                   262 weeks Martina Hingis              209 weeks Monica Seles                178 weeks Serena Williams             57 weeks Lindsay Davenport          38 weeks Tracy Austin                   22 weeks Jennifer Capriati              17 weeks Kim Clijsters                   12 weeks Arantxa Sanchez-Vicario   12 weeks Venus Williams               11 weeks Justine Henin-Hardenne     1 weeks Hilbert's third problem