* Held two match points on 14th seed Sandrine Testud in the third round of the 1999 Australian Open before falling 6-2, 2-6, 9-7; reached the mixed doubles final (her fourth straight Grand Slam mixed doubles final) and the women's doubles semifinals

* Ranked No. 96 and playing in her third main draw event on the major tour, made a stunning comeback to defeat world No. 3 Lindsay Davenport at 1998 Sydney to reach the semifinals as a qualifier after trailed 6-1, 5-2 and down two match points; also defeated Mirjana Lucic and No. 13 Sandrine Testud, winning six straight matches overall (including three qualifying rounds); world ranking shot up 43 spots to No. 53

* World-ranked No. 53 on January 19, 1998, became the third-highest ranked player after just three WTA TOUR main draw events since 1976

* Playing in her first Grand Slam singles event, ousted sixth seed Irina Spirlea in the first round of the 1998 Australian Open before falling to her sister, Venus, in the second round; against Spirlea, trailed by a set and a service break before staging her comeback; win over Spirlea was her fourth over a Top 10 player in her fourth career main draw event on the Tour

* Ranked No. 40, defeated three Top 30 players en route to a quarterfinal finish at 1998 Lipton: No. 10 Irina Spirlea, No. 17 Patty Schnyder and No. 26 Barbara Paulus; then held two match points on world No. 1 Martina Hingis before losing in a third-set tie-break

* By defeating 10th-ranked Irina Spirlea (ROM) in only her 16th career WTA TOUR main-draw singles match at 1998 Lipton, Williams defeated five Top 10 players faster than any player in the history of professional women's tennis, breaking the previous record set by Monica Seles in 1989 who recorded her fifth career Top 10 victory in her 33rd main-draw match

* Playing in her first professional clay court tournament at the 1998 Italian Open, upset 12th-ranked Nathalie Tauziat in her first match, No. 21 Joannette Kruger, and four-time champion, world No. 8 Conchita Martinez en route to the quarterfinals before falling to her sister, Venus; ranking improved to a then-career high No. 27

* In just her second career clay court tournament, ousted 15th seed Dominique Van Roost to reach the fourth round of 1998 Roland Garros before falling to eventual champion Arantxa Sanchez Vicario in three sets; reached the mixed doubles final with Luis Lobo, losing to her sister, Venus, and Jason Gimelstob

* Playing in her first grass court tournament at 1998 Eastbourne, reached the quarterfinals with an upset of 17th-ranked Ai Sugiyama and for the first time advanced further than her sister, Venus, in a tournament; lost in the quarterfinals in three sets to fourth-ranked Arantxa Sanchez Vicario; ranking cracked the Top 20 for the first time at No. 20

* Won the mixed doubles title with Max Mirnyi at her Wimbledon debut in 1998, her first Grand Slam title; reached the third round in singles with a 6-3, 6-0 second-round win over Mirjana Lucic; retired due to injury during her third-round match

* Won the mixed doubles title at 1998 US Open with Max Mirnyi, completing a Grand Slam mixed doubles sweep for the Williams' family after sister, Venus, won the 1998 Australian Open and Roland Garros crowns with Justin Gimelstob; reached the third round in singles

* Won her first professional title in doubles at 1998 Oklahoma City with sister, Venus, becoming the third pair of sisters to win a Tour doubles title; captured their second title at 1998 Zurich as a wildcard team, upsetting top seeds Davenport/Zvereva in the first round * Served the fifth fastest serve on the Tour in 1998 at the U.S. Open, 114 miles per hour