| Serena Williams|
| Lindsay Davenport|
Martina Hingis was the defending champion, but pulled out due to ankle surgery.
2001 WTA Tour Championships – Singles Wikipedia
Notes Venus Williams ranked 3 had qualified but pulled out due to left wrist injury
Martina Hingis ranked 4 had qualified but pulled out due to ankle surgery
Monica Seles ranked 9 had qualified but chose not to play, given the fact that the tournament took place in Germany, the same country as her stabbing.