Andy Roddick defeated Mardy Fish in the final, 4–6, 7–6(7–3), 7–6(7–4) to win the singles tennis title at the 2003 Cincinnati Masters.
Carlos Moyá was the defending champion, but lost in the first round to Fabrice Santoro.
Seeds
Andre Agassi (withdrew) Juan Carlos Ferrero (second round) Roger Federer (second round) Carlos Moyá (first round) Lleyton Hewitt (first round) Guillermo Coria (quarterfinals) Andy Roddick (champion) Rainer Schüttler (semifinals) Paradorn Srichaphan (first round) Sébastien Grosjean (first round) Sjeng Schalken (second round) Jiří Novák (first round) Fernando González (second round) Gustavo Kuerten (first round) Tommy Robredo (first round) Martin Verkerk (first round) Félix Mantilla (first round)
Draw
Finals
Top half
Section 1
Section 2
Bottom half
Section 3
Section 4
Qualifying
Qualifying seeds
Qualifiers
Qualifying draw
First qualifier
Second qualifier
Third qualifier
Fourth qualifier
Fifth qualifier
Sixth qualifier
Seventh qualifier
Eighth qualifier
References
External links 2003 Western & Southern Financial Group Masters Draw 2003 Western & Southern Financial Group Masters Qualifying Draw ITF tournament profile