2003 WTA Tour Championships

The results of the 2003 WTA Tour Championships held in Los Angeles, United States. For the first time a round robin system was introduced, after the men's Tennis Masters Cup. Two groups of four players were formed and each contender had to play three matches.

=Singles=

Contenders

Black Group

Finals

4TeamBracket-Tennis3
team-width=150
RD2-team1=flagicon|ESP Ruano Pascal
flagicon|ARG Suarez
RD2-seed1=2
RD2-team2=flagicon|BEL Clijsters
flagicon|JPN Sugiyama
RD2-seed2=1
RD2-score1-1=6
RD2-score2-1=4
RD2-score1-2=3
RD2-score2-2=6
RD2-score1-3=6
RD2-score2-3=3
RD1-team1=flagicon|ESP Ruano Pascal
flagicon|ARG Suarez
RD1-seed1=2
RD1-team2=flagicon|RUS Kuznetsova
flagicon|USA Navratilova
RD1-seed2=3
RD1-score1-1=6
RD1-score2-1=4
RD1-score1-2=6
RD1-score2-2=4
RD1-team3=flagicon|BEL Clijsters
flagicon|JPN Sugiyama
RD1-seed3=1
RD1-team4=flagicon|ZIM Black
flagicon|RUS Likhovtseva
RD1-seed4=2
RD1-score3-1=6
RD1-score4-1=3
RD1-score3-2=6
RD1-score4-2=4