| Tournament | Singles
champion |
|---|
| ExxonMobil Open, Doha, Qatar | Roger Federer |
| ABN AMRO World Tennis, Rotterdam, Netherlands | Roger Federer |
| Dubai Duty Free, Dubai, UAE | Roger Federer |
| Abierto Mexicano TELCEL, Acapulco, Mexico | Rafael Nadal |
| Pacific Life Open, Indian Wells, Calif. | Roger Federer |
| NASDAQ-100 Open, Miami, Fla. | Roger Federer |
| Masters, Monte Carlo, Monaco | Rafael Nadal |
| Open Seat Godó 2005, Barcelona, Spain | Rafael Nadal |
| Estoril Open, Estoril, Portugal | Gaston Gaudio |
| Telecom Italia Masters, Rome, Italy | Rafael Nadal |
| Masters Series, Hamburg, Germany | Roger Federer |
| Stella Artois Championships, London, England | Andy Roddick |
| Gerry Weber Open, Halle, Germany | Roger Federer |
| Allianz Suisse Open, Gstaad, Switzerland | Gaston Gaudio |
| Mercedes Cup, Stuttgart, Germany | Rafael Nadal |
| RCA Championships, Indianapolis, Ind. | Robby Ginepri |
| Generali Open, Kitzbühel, Austria | Gaston Gaudio |
| Legg Mason Tennis Classic, Washington, DC | Andy Roddick |
| Rogers Masters, Montreal, Canada | Rafael Nadal |
| Pilot Pen Tennis, New Haven, Conn. | James Blake |
| | |
