The 2001 WTA Tour Championships, also known by its sponsored name Sanex Championships, was a women's tennis tournament played on indoor carpet courts at the Olympiahalle in Munich, Germany. It was the 31st edition of the year-end singles championships, the 26th edition of the year-end doubles championships, and was part of the 2001 WTA Tour. The tournament was held between 30 October and 4 November 2001. Seventh-seeded Serena Williams won the singles event after Lindsay Davenport defaulted the final due to a knee injury she sustained in her semifinal match. Davenport's semifinal win ensured her the No.1 year-end ranking. Williams earned $500,000 first-prize money as well as 390 ranking points.