| Men's singles | |
|---|---|
| 2004 Ordina Open | |
| Champion |  Michaël Llodra |
| Runner-up |  Guillermo Coria |
| Final score | 6–3, 6–4 |
| Draw | 32 (4 Q / 3 WC ) |
| Seeds | 8 |
Sjeng Schalken was the defending champion, but lost in the first round this year.
Michaël Llodra won the title, beating Guillermo Coria 6–3, 6–4 in the final.
Guillermo Coria (final)
Rainer Schüttler (first round)
Sjeng Schalken (first round)
Tommy Robredo (semifinals)
Dominik Hrbatý (first round)
Mikhail Youzhny (second round, retired because of a virus infection) Arnaud Clément (quarterfinals) Fernando Verdasco (quarterfinals)| Semifinals | Final | ||||||||||||
| WC/1 | Guillermo Coria | 77 | 1 | 6 | |||||||||
 Mario Ančić | 64 | 6 | 3 | ||||||||||
| WC/1 | Guillermo Coria | 3 | 4 | ||||||||||
| WC | Michaël Llodra | 6 | 6 | ||||||||||
| 4 | Tommy Robredo | 3 | 2 | ||||||||||
| WC | Michaël Llodra | 6 | 6 | ||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| WC/1 | G Coria | 6 | 6 | ||||||||||||||||||||||||
| K Beck | 3 | 3 | WC/1 | G Coria | 6 | 6 | |||||||||||||||||||||
| Q |  G Bastl | 67 | 4 | Q | M Kohlmann | 4 | 2 | ||||||||||||||||||||
| Q | M Kohlmann | 79 | 6 | WC/1 | G Coria | 6 | 7 | ||||||||||||||||||||
| D van Scheppingen | 6 | 6 | 7 | A Clément | 2 | 5 | |||||||||||||||||||||
| J Acasuso | 3 | 2 | D van Scheppingen | 5 | 0r | ||||||||||||||||||||||
| I Karlović | 68 | 77 | 3 | 7 | A Clément | 7 | 1 | ||||||||||||||||||||
| 7 | A Clément | 710 | 65 | 6 | WC/1 | G Coria | 77 | 1 | 6 | ||||||||||||||||||
| 3 | S Schalken | 6 | 3 | 2 | M Ančić | 64 | 6 | 3 | |||||||||||||||||||
| M Ančić | 4 | 6 | 6 | M Ančić | 6 | 6 | |||||||||||||||||||||
| WC | P Wessels | 1 | 3 | I Andreev | 3 | 1 | |||||||||||||||||||||
| I Andreev | 6 | 6 | M Ančić | 6 | 6 | ||||||||||||||||||||||
 K Vliegen | 62 | 4 | M Verkerk | 3 | 3 | ||||||||||||||||||||||
| M Verkerk | 77 | 6 | M Verkerk | 6 | 2 | ||||||||||||||||||||||
| A Dupuis | 4 | 0 | 6 | M Youzhny | 2 | 0r | |||||||||||||||||||||
| 6 | M Youzhny | 6 | 6 | ||||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 8 | F Verdasco | 3 | 79 | 6 | |||||||||||||||||||||||
| Q | J-C Scherrer | 6 | 67 | 4 | 8 | F Verdasco | 5 | ||||||||||||||||||||
| T Ascione | 2 | 0 | J van Lottum | 4r | |||||||||||||||||||||||
| J van Lottum | 6 | 6 | 8 | F Verdasco | 65 | 2 | |||||||||||||||||||||
| G Cañas | 6 | 6 | 4 | T Robredo | 77 | 6 | |||||||||||||||||||||
| N Davydenko | 4 | 4 | G Cañas | 5 | 6 | 5 | |||||||||||||||||||||
| L Burgsmüller | 6 | 4 | 4 | 4 | T Robredo | 7 | 1 | 7 | |||||||||||||||||||
| 4 | T Robredo | 3 | 6 | 6 | 4 | T Robredo | 3 | 2 | |||||||||||||||||||
| 5 | D Hrbatý | 4 | 4 | WC | M Llodra | 6 | 6 | ||||||||||||||||||||
 J Vacek | 6 | 6 | J Vacek | 3 | 4 | ||||||||||||||||||||||
| WC | M Llodra | 6 | 6 | WC | M Llodra | 6 | 6 | ||||||||||||||||||||
 Y-h Lu | 3 | 1 | WC | M Llodra | 62 | 77 | 6 | ||||||||||||||||||||
| A Popp | 1 | 7 | 4 | R Sluiter | 77 | 65 | 3 | ||||||||||||||||||||
| Q | P Petzschner | 6 | 5 | 6 | Q | P Petzschner | 3 | 0 | |||||||||||||||||||
| R Sluiter | 3 | 77 | 6 | R Sluiter | 6 | 6 | |||||||||||||||||||||
| 2 | R Schüttler | 6 | 62 | 3 | |||||||||||||||||||||||
Juan Carlos Ferrero defeated Martin Verkerk in the final, 6–1, 6–3, 6–2 to win the men's singles tennis title at the 2003 French Open.
Gastón Gaudio defeated Guillermo Coria in the final, 0–6, 3–6, 6–4, 6–1, 8–6 to win the men's singles tennis title at the 2004 French Open. Gaudio became the first Argentine to win a major since Guillermo Vilas at the 1979 Australian Open. Gaudio came back from two-sets-to-love down, saved two championship points, and twice broke Coria's serve when the latter served for the championship.
Andy Roddick defeated Juan Carlos Ferrero in the final, 6–3, 7–6(7–2), 6–3 to win the men's singles tennis title at the 2003 US Open. It was his first and only major title. Roddick remains the most recent American to win the US Open men's singles title as well as any major men's singles title. Roddick saved a match point in the semi-finals against David Nalbandian.
Andy Roddick defeated David Nalbandian in the final, 6–1, 6–3 to win the men's singles tennis title at the 2003 Canada Masters.
Guillermo Cañas was the defending champion but lost in the quarterfinals to Karol Kučera.
Gustavo Kuerten was the defending champion of the singles event at the Heineken Open tennis tournament, held in Auckland, New Zealand, but lost in the semifinals to Dominik Hrbatý.
Jan Vacek was the defending champion but did not compete that year.
Two-time defending champion Andre Agassi defeated Carlos Moyá in the final, 6–3, 6–3 to win the men's singles tennis title at the 2003 Miami Open.
Defending champion Juan Carlos Ferrero defeated Guillermo Coria in the final, 6–2, 6–2 to win the singles tennis title at the 2003 Monte Carlo Masters.
Félix Mantilla defeated Roger Federer in the final, 7–5, 6–2, 7–6(10–8) to win the men's singles tennis title at the 2003 Italian Open.
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.
Tim Henman defeated Andrei Pavel in the final, 6–2, 7–6(8–6), 7–6(7–2) to win the singles tennis title at the 2003 Paris Masters.
Roger Federer defeated Tim Henman in the final, 6–3, 6–3, to win the men's singles tennis title at the 2004 Indian Wells Masters.
Andy Roddick won the men's singles tennis title at the 2004 Miami Open after Guillermo Coria retired in the final, with the scoreline at 6–7(2–7), 6–3, 6–1.
Guillermo Coria defeated Rainer Schüttler in the final, 6–2, 6–1, 6–3 to win the singles tennis title at the 2004 Monte Carlo Masters.
Roger Federer defeated the defending champion Guillermo Coria in the final, 4–6, 6–4, 6–2, 6–3 to win the singles tennis title at the 2004 Hamburg European Open.
Andy Roddick was the defending champion and won in the final 7–6(7–4), 6–4 against Sébastien Grosjean.
Thomas Johansson was the defending champion but lost in the quarterfinals to Jarkko Nieminen.
Lleyton Hewitt was the defending champion but lost in the quarterfinals to Arnaud Clément.
Roger Federer was the defending champion and won in the final 4–6, 6–1, 6–2 against Feliciano López.