2005 ATP Masters Series Singles Singles

| Tournament | Surface | Week | Winner | Runner_up | Semifinalists |
|---|---|---|---|---|---|
| Hamburg | Clay | May 9 | Roger Federer (1) 6–3, 7–5, 7–6(4) | Richard Gasquet (Q) | Nikolay Davydenko (15) Christophe Rochus (Q) |
| Montréal | Hard | August 8 | Rafael Nadal (1) 6–3, 4–6, 6–2 | Andre Agassi (4) | Paul-Henri Mathieu Greg Rusedski |
| Cincinnati | Hard | August 15 | Roger Federer (1) 6–3, 7–5 | Andy Roddick (5) | Robby Ginepri (WC) Lleyton Hewitt (3) |
| Madrid | Hard (i) | October 17 | Rafael Nadal (1) 3–6, 2–6, 6–3, 6–4, 7–6(3) | Ivan Ljubičić (8) | Robby Ginepri (16) David Nalbandian (5) |
| Paris | Carpet (i) | October 31 | Tomáš Berdych 6–3, 6–4, 3–6, 4–6, 6–4 | Ivan Ljubičić (6) | Andy Roddick (1) Radek Štěpánek (8) |
| Shanghai ( TMC ) | Carpet (i) | November 13 | David Nalbandian 6–7(4), 6–7(11), 6–2, 6–1, 7–6(3) | Roger Federer | Gastón Gaudio Nikolay Davydenko |