2001 Tennis Masters Series Singles Singles

| Tournament | Surface | Week | Winner | Finalist | Semifinalists |
|---|---|---|---|---|---|
| Canada (Montreal) | Hard | July 30 | Andrei Pavel 7–6(3), 2–6, 6–3 | Patrick Rafter (9) | Tommy Haas Fabrice Santoro |
| Cincinnati | Hard | August 6 | Gustavo Kuerten (1) 6–1, 6–3 | Patrick Rafter (8) | Tim Henman (7) Lleyton Hewitt (5) |
| Stuttgart | Carpet (i) | October 15 | Tommy Haas (15) 6–2, 6–2, 6–2 | Max Mirnyi (Q) | Yevgeny Kafelnikov (5) Lleyton Hewitt (3) |
| Paris | Carpet (i) | October 29 | Sébastien Grosjean (6) 7–6(3), 6–1, 6–7(5), 6–4 | Yevgeny Kafelnikov (4) | Andreas Vinciguerra Tommy Haas (7) |