The WTA Tour is the elite tour for professional women's tennis organised by the Women's Tennis Association (WTA). The WTA Tour includes the four Grand Slam tournaments, the WTA Tour Championships and the WTA Tier I, Tier II, Tier III and Tier IV events. ITF tournaments are not part of the WTA Tour, although they award points for the WTA World Ranking.

Schedule

This is the complete schedule of events on the 1998 WTA Tour, with player progression documented from the quarter-final stage.

Key

January

February

March

April

May

June

July

August

September

October

November

Statistical information

List of players and titles won, last name alphabetically: The following players won their first title: List of titles won by country:

Rankings

Below are the 1998 WTA year-end rankings in both singles and doubles competition: