2003 Canada Masters – Singles
The 2003 Canada Masters – Singles was the men's singles event of the one hundred and fourteenth edition of the Canada Masters; a WTA Tier I tournament and the most prestigious men's tennis tournament held in Canada. Guillermo Cañas was the defending champion but did not compete that year. Andy Roddick won in the final 6-1, 6-3 against David Nalbandian.Seeds
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
- Andre Agassi '
- Juan Carlos Ferrero '
- Roger Federer '
- Carlos Moyá '
- Lleyton Hewitt '
- Andy Roddick
- Guillermo Coria '
- Rainer Schüttler '
- Sébastien Grosjean '
- Jiří Novák '
- Paradorn Srichaphan '
- Sjeng Schalken '
- Gustavo Kuerten '
- Fernando González '
- Martin Verkerk '
- Tommy Robredo
Draw
Finals
Top Half
Section 1
Section 2
Bottom Half
Section 3
Section 4