# 2003 Western & Southern Financial Group Masters – Singles

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
### Key

* Q = Qualifier
* WC = Wild card
* LL = Lucky loser
* Alt = Alternate
* SE = Special exempt
* PR = Protected ranking
* ITF = ITF entry
* JE = Junior exempt
* w/o = Walkover
* r = Retired
* d = Defaulted
* SR = Special ranking

### Finals

| Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Max Mirnyi | 6 | 7 | | | | | | | | | |
| 6 | Guillermo Coria | 2 | 5 | | | | | | | | | |
| 6 | Guillermo Coria | 2 | 5 | | Max Mirnyi | 6$^5$ | 4 | | | | | |
| | | | | 7 | Andy Roddick | 7$^7$ | 6 | | | | | |
| | Mariano Zabaleta | 1 | 2 | 7 | Andy Roddick | 7$^7$ | 6 | | | | | |
| 7 | Andy Roddick | 6 | 6 | | | | | | | | | |
| 7 | Andy Roddick | 6 | 6 | | | | | 7 | Andy Roddick | 4 | 7$^7$ | 7$^7$ |
| | | | | | | | | | Mardy Fish | 6 | 6$^3$ | 6$^4$ |
| | Mardy Fish | 7$^7$ | 6 | | | | | | | | | | Mardy Fish | 6 | 6$^3$ | 6$^4$ |
| | David Nalbandian | 6$^3$ | 3 | | | | | | | | | |
| | David Nalbandian | 6$^3$ | 3 | | Mardy Fish | 7$^7$ | 7$^8$ | | | | | |
| | | | | 8 | Rainer Schüttler | 6$^4$ | 6$^6$ | | | | | |
| 8 | Rainer Schüttler | 6 | 6 | 8 | Rainer Schüttler | 6$^4$ | 6$^6$ | | | | | |
| | Robby Ginepri | 2 | 3 | | | | | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 17 | F Mantilla | 3 | 6$^5$ | | | | | | | | | | | | | | | |
| WC | T Enqvist | 6 | 7$^7$ | | WC | T Enqvist | 6$^2$ | 4 | | | | | | | | | | |
| | À Corretja | 6 | 3 | 6$^2$ | | M Mirnyi | 7$^7$ | 6 | | | | | | | | | | |
| | M Mirnyi | 3 | 6 | 7$^7$ | | | | | | | M Mirnyi | 6 | 6$^7$ | 6 | | | | |
| WC | M Chang | 6 | 6$^7$ | 0 | | | | | | Q | H Arazi | 4 | 7$^9$ | 4 | | | | |
| Q | H Arazi | 4 | 7$^9$ | 6 | Q | H Arazi | 6 | 6 | | | | | | | | | | |
| | P-H Mathieu | 6 | 4 | 6 | | P-H Mathieu | 2 | 1 | | | | | | | | | | |
| 15 | T Robredo | 4 | 6 | 3 | | | | | | | | | | | | M Mirnyi | 6 | 7 |
| 10 | S Grosjean | 3 | 7$^{11}$ | 3 | | | | | | | | | | | 6 | G Coria | 2 | 5 |
| Q | W Moodie | 6 | 6$^9$ | 6 | Q | W Moodie | 4 | 6$^4$ | | | | | | | | | | |
| | A Calleri | 3 | 3 | | | M Youzhny | 6 | 7$^7$ | | | | | | | | | | |
| | M Youzhny | 6 | 6 | | | | | | | | M Youzhny | 2 | 1 | | | | | |
| | Y Kafelnikov | 6 | 6 | | | | | | | 6 | G Coria | 6 | 6 | | | | | |
| | J-M Gambill | 4 | 4 | | | Y Kafelnikov | 0 | 4 | r | | | | | | | | | |
| | T Henman | 3 | 6 | 4 | 6 | G Coria | 6 | 5 | | | | | | | | | | |
| 6 | G Coria | 6 | 4 | 6 | | | | | | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 4 | C Moyá | 6 | 3 | 4 | | | | | | | | | | | | | | |
| | F Santoro | 3 | 6 | 6 | | F Santoro | 5 | 3 | | | | | | | | | | |
| | F Saretta | 6$^2$ | 6 | 6 | | F Saretta | 7 | 6 | | | | | | | | | | |
| | D Sánchez | 7$^7$ | 1 | 2 | | | | | | | F Saretta | 7$^7$ | 2 | 4 | | | | |
| | V Spadea | 5 | 4 | | | | | | | | M Zabaleta | 6$^5$ | 6 | 6 | | | | |
| | Y El Aynaoui | 7 | 6 | | | Y El Aynaoui | 7$^7$ | 4 | 5 | | | | | | | | | |
| | M Zabaleta | 6 | 6 | | | M Zabaleta | 6$^4$ | 6 | 7 | | | | | | | | | |
| 14 | G Kuerten | 4 | 0 | | | | | | | | | | | | | M Zabaleta | 1 | 2 |
| 11 | S Schalken | 6 | 6 | | | | | | | | | | | | 7 | A Roddick | 6 | 6 |
| | H-T Lee | 4 | 3 | | 11 | S Schalken | 1 | 4 | | | | | | | | | | |
| | W Ferreira | 1 | 6$^0$ | | | J Blake | 6 | 6 | | | | | | | | | | |
| | J Blake | 6 | 7$^7$ | | | | | | | | J Blake | 6$^2$ | 2 | | | | | |
| | I Ljubičić | 3 | 7 | 6 | | | | | | 7 | A Roddick | 7$^7$ | 6 | | | | | |
| | N Lapentti | 6 | 5 | 3 | | I Ljubičić | 1 | 4 | | | | | | | | | | |
| Q | F Verdasco | 3 | 2 | | 7 | A Roddick | 6 | 6 | | | | | | | | | | |
| 7 | A Roddick | 6 | 6 | | | | | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | L Hewitt | 6 | 4 | 2 | | | | | | | | | | | |
| | X Malisse | 3 | 6 | 6 | | X Malisse | 5 | 7$^7$ | 1 | | | | | | |
| | M Philippoussis | 6 | 3 | 4 | | M Fish | 7 | 6$^5$ | 6 | | | | | | |
| | M Fish | 1 | 6 | 6 | | | | | | M Fish | 6 | 6 | | | |
| | A Clément | 7$^7$ | 6 | | | | | | | A Clément | 2 | 2 | | | |
| | A Costa | 6$^5$ | 4 | | | A Clément | 7$^7$ | 5 | 6 | | | | | | |
| | G Rusedski | 2 | 7$^7$ | 6 | | G Rusedski | 6$^2$ | 7 | 2 | | | | | | |
| 12 | J Novák | 6 | 6$^3$ | 4 | | | | | | | | | M Fish | 7$^7$ | 6 |
| 13 | F González | 7 | 6 | | | | | | | | | | D Nalbandian | 6$^3$ | 3 |
| WC | B Vahaly | 5 | 2 | | 13 | F González | 2 | 4 | | | | | | | |
| | K Kučera | 1 | 1 | | | J I Chela | 6 | 6 | | | | | | | |
| | J I Chela | 6 | 6 | | | | | | | J I Chela | 4 | 4 | | | |
| | D Nalbandian | 6 | 6 | | | | | | | D Nalbandian | 6 | 6 | | | |
| Q | W Arthurs | 0 | 4 | | | D Nalbandian | 7$^7$ | 7$^7$ | | | | | | | |
| Q | S Draper | 6 | 3 | 6$^{10}$ | 3 | R Federer | 6$^4$ | 6$^5$ | | | | | | | |
| 3 | R Federer | 4 | 6 | 7$^{12}$ | | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 8 | R Schüttler | 6 | 7 | | | | | | | | | | | | | | | |
| Q | S Koubek | 2 | 5 | | 8 | R Schüttler | 3 | 6 | 7$^7$ | | | | | | | | | |
| | F Vicente | 5 | 6 | 4 | | J Nieminen | 6 | 3 | 6$^4$ | | | | | | | | | |
| | J Nieminen | 7 | 3 | 6 | | | | | | 8 | R Schüttler | 7 | 3 | 6 | | | | |
| WC | T Martin | 6 | 6 | | | | | | | WC | T Martin | 5 | 6 | 3 | | | | |
| | J Acasuso | 3 | 4 | | WC | T Martin | 7$^7$ | 6 | | | | | | | | | | |
| | F López | 6$^1$ | 6 | 7$^7$ | | F López | 6$^3$ | 4 | | | | | | | | | | |
| 9 | P Srichaphan | 7$^7$ | 4 | 6$^5$ | | | | | | | | | | | 8 | R Schüttler | 6 | 6 |
| 16 | M Verkerk | 6 | 3 | 1 | | | | | | | | | | | | R Ginepri | 2 | 3 |
| Q | N Okun | 3 | 6 | 6 | Q | N Okun | 6$^5$ | 4 | | | | | | | | | | |
| | R Štěpánek | 1 | 6 | 0 | | R Ginepri | 7$^7$ | 6 | | | | | | | | | | |
| | R Ginepri | 6 | 3 | 6 | | | | | | | R Ginepri | 6 | 7$^7$ | | | | | |
| | G Gaudio | 6 | 6 | | | | | | | | G Gaudio | 1 | 6$^4$ | | | | | |
| Q | R Kendrick | 4 | 4 | | | G Gaudio | 6$^3$ | 7$^7$ | 6 | | | | | | | | | |
| | N Davydenko | 0 | 2 | | 2 | J C Ferrero | 7$^7$ | 6$^5$ | 4 | | | | | | | | | |
| 2 | J C Ferrero | 6 | 6 | | | | | | | | | | | | | | | |