| Singles | |
|---|---|
| 2008 SAP Open | |
| Champion |  Andy Roddick |
| Runner-up |  Radek Štěpánek |
| Score | 6–4, 7–5 |
| Draw | 32 (4Q / 3WC) |
| Seeds | 8 |
Andy Murray was the defending champion, but chose not to participate that year.
First-seeded Andy Roddick won in the final 6–4, 7–5, against Radek Štěpánek.
Andy Roddick (champion) James Blake (quarterfinals)
Tommy Haas (second round) Radek Štěpánek (final)
Hyung-taik Lee (withdrew due to a back injury)
Jürgen Melzer (first round) Sam Querrey (first round)
Kristof Vliegen (second round)| Semifinals | Final | ||||||||||||
| 1 | Andy Roddick | 7 | 6 | ||||||||||
 Guillermo García López | 62 | 1 | |||||||||||
| 1 | Andy Roddick | 6 | 7 | ||||||||||
| 4 | Radek Štěpánek | 4 | 5 | ||||||||||
| 4 | Radek Štěpánek | 65 | 6 | 6 | |||||||||
| WC | Robby Ginepri | 7 | 4 | 1 | |||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| 1 | A Roddick | 6 | 63 | 7 | |||||||||||||||||||||||
| LL |  C Guccione | 3 | 7 | 65 | 1 | A Roddick | 6 | 6 | |||||||||||||||||||
| SE |  K Nishikori | 7 | 6 | SE | K Nishikori | 2 | 4 | ||||||||||||||||||||
 D Hartfield | 5 | 3 | 1 | A Roddick | 7 | 1 | 7 | ||||||||||||||||||||
| M Fish | 6 | 6 | M Fish | 66 | 6 | 5 | |||||||||||||||||||||
| Q | T Smyczek | 3 | 4 | M Fish | 64 | 6 | 6 | ||||||||||||||||||||
| Q | D Gremelmayr | 5 | 7 | 6 | Q | D Gremelmayr | 7 | 3 | 3 | ||||||||||||||||||
| 7 | S Querrey | 7 | 61 | 3 | 1 | A Roddick | 7 | 6 | |||||||||||||||||||
| 3 | T Haas | 6 | 4 | 6 | G García López | 62 | 1 | ||||||||||||||||||||
| R Kendrick | 3 | 6 | 2 | 3 | T Haas | 6 | 66 | 3 | |||||||||||||||||||
 F Serra | 65 | 4 | J Isner | 4 | 7 | 6 | |||||||||||||||||||||
| J Isner | 7 | 6 | J Isner | 64 | 7 | 611 | |||||||||||||||||||||
| B Becker | 6 | 3 | G García López | 7 | 61 | 7 | |||||||||||||||||||||
 M Daniel | 1 | 0 | r | B Becker | 6 | 63 | 4 | ||||||||||||||||||||
| G García López | 6 | 65 | 7 | G García López | 3 | 7 | 6 | ||||||||||||||||||||
| 6 | J Melzer | 2 | 7 | 66 | |||||||||||||||||||||||
| First round | Second round | Quarterfinals | Semifinals | ||||||||||||||||||||||||
| LL | W Odesnik | 6 | 5 | 6 | |||||||||||||||||||||||
| D Young | 1 | 7 | 4 | LL | W Odesnik | 4 | 4 | ||||||||||||||||||||
| WC |  M Mirnyi | 64 | 7 | 2 |  Y-h Lu | 6 | 6 | ||||||||||||||||||||
| Y-h Lu | 7 | 5 | 6 | Y-h Lu | 2 | 65 | |||||||||||||||||||||
| B Reynolds | 7 | 6 | 4 | R Štěpánek | 6 | 7 | |||||||||||||||||||||
| Q | B Dorsch | 5 | 4 | B Reynolds | 5 | 65 | |||||||||||||||||||||
 P Capdeville | 62 | 1 | 4 | R Štěpánek | 7 | 7 | |||||||||||||||||||||
| 4 | R Štěpánek | 7 | 6 | 4 | R Štěpánek | 65 | 6 | 6 | |||||||||||||||||||
| 8 | K Vliegen | 6 | 7 | WC | R Ginepri | 7 | 4 | 1 | |||||||||||||||||||
 V Hănescu | 4 | 64 | 8 | K Vliegen | 2 | 3 | |||||||||||||||||||||
| LL | J Witten | 2 | 7 | 4 | WC | R Ginepri | 6 | 6 | |||||||||||||||||||
| WC | R Ginepri | 6 | 5 | 6 | WC | R Ginepri | 6 | 6 | |||||||||||||||||||
| S Darcis | 3 | 6 | 4 | 2 | J Blake | 2 | 2 | ||||||||||||||||||||
| WC | J Levine | 6 | 2 | 6 | WC | J Levine | 3 | 4 | |||||||||||||||||||
| Q | S Warburg | 3 | 1 | 2 | J Blake | 6 | 6 | ||||||||||||||||||||
| 2 | J Blake | 6 | 6 | ||||||||||||||||||||||||
Defending champion Roger Federer defeated Andre Agassi in the final, 6–3, 2–6, 7–6(7–1), 6–1 to win the men's singles tennis title at the 2005 US Open. It was his second US Open title and sixth major title overall. This was Agassi's last appearance in a major final.
Tommy Haas was the defending champion, but lost in the second round to Benjamin Becker.
Roger Federer defeated Richard Gasquet in the final, 2–6, 6–3, 6–2 to win the men's singles tennis title at the 2006 Canadian Open.
Andy Roddick was the defending champion but lost in the semifinals to James Blake.
Rafael Nadal defeated Nicolas Kiefer in the final, 6–3, 6–2 to win the men's singles tennis title at the 2008 Canadian Open.
Andy Murray defeated Novak Djokovic in the final, 7–6(7–4), 7–6(7–5) to win the men's singles tennis title at the 2008 Cincinnati Masters. It was his first Masters title. Rafael Nadal's 32 match winning-streak ended in the semifinals when he was defeated by Djokovic.
Rafael Nadal defeated Guillermo Coria in the final, 6–4, 3–6, 6–3, 4–6, 7–6(8–6) to win the men's singles title at the 2005 Italian Open. Nadal was making his tournament debut.
Defending champion Roger Federer defeated Richard Gasquet in the final, 6–3, 7–5, 7–6(7–4) to win the singles tennis title at the 2005 Hamburg European Open. He did not lose a single set in the entire tournament.
Roger Federer defeated Andy Roddick in the final, 6–3, 7–5 to win the men's singles tennis title at the 2005 Cincinnati Masters.
Andy Roddick was the defending champion, but lost to Radek Štěpánek in the semifinals.
Steve Darcis was the defending champion, but lost in the first round to Andy Roddick, who went on to win the title by defeating Radek Štěpánek in the final, 7–5, 7–5.
Andy Roddick was the defending champion and won in the final 7–6(7–4), 6–4 against Sébastien Grosjean.
Andy Roddick was the defending champion and won in the final 7–6(9–7), 7–6(7–4) against Ivo Karlović.
Radek Štěpánek was the defending champion, but he lost in the final to Andy Roddick, 7–6(7–2), 7–6(9–7).
Radek Štěpánek was the defending champion; however, he lost to Xavier Malisse in the first round.
Fernando Verdasco won in the final 3–6, 6–4, 6–4 against Andy Roddick.
Andy Roddick was the defending champion, but lost in the quarterfinals to Sam Querrey.
Sam Querrey won in the final 6–7(3–7), 7–6(7–5), 6–3, against John Isner.
Lleyton Hewitt was the defending champion, but did not participate.
Milos Raonic defended his title, defeating unseeded Denis Istomin in straight sets in the final.
Andy Roddick was the defending champion, but lost in the first round to Xavier Malisse. Jürgen Melzer defeated Milos Raonic in the final 7–5, 7–6(7–4).