# 2008 SAP Open – Singles

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.

## Seeds

* 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)

## 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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Andy Roddick | 7 | 6 | | | | | |
| | Guillermo García López | 6$^2$ | 1 | | | | | |
| | Guillermo García López | 6$^2$ | 1 | | 1 | Andy Roddick | 6 | 7 |
| | | | | | 4 | Radek Štěpánek | 4 | 5 |
| 4 | Radek Štěpánek | 6$^5$ | 6 | 6 | 4 | Radek Štěpánek | 4 | 5 |
| WC | Robby Ginepri | 7 | 4 | 1 | | | | |

### Top half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 1 | A Roddick | 6 | 6$^3$ | 7 | | | | | | | | | | | | | | |
| LL | C Guccione | 3 | 7 | 6$^5$ | 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 | 6$^6$ | 6 | 5 | | | | |
| Q | T Smyczek | 3 | 4 | | | M Fish | 6$^4$ | 6 | 6 | | | | | | | | | |
| Q | D Gremelmayr | 5 | 7 | 6 | Q | D Gremelmayr | 7 | 3 | 3 | | | | | | | | | |
| 7 | S Querrey | 7 | 6$^1$ | 3 | | | | | | | | | | | 1 | A Roddick | 7 | 6 |
| 3 | T Haas | 6 | 4 | 6 | | | | | | | | | | | | G García López | 6$^2$ | 1 |
| | R Kendrick | 3 | 6 | 2 | 3 | T Haas | 6 | 6$^6$ | 3 | | | | | | | | | |
| | F Serra | 6$^5$ | 4 | | | J Isner | 4 | 7 | 6 | | | | | | | | | |
| | J Isner | 7 | 6 | | | | | | | | J Isner | 6$^4$ | 7 | 6$^{11}$ | | | | |
| | B Becker | 6 | 3 | | | | | | | | G García López | 7 | 6$^1$ | 7 | | | | |
| | M Daniel | 1 | 0 | r | | B Becker | 6 | 6$^3$ | 4 | | | | | | | | | |
| | G García López | 6 | 6$^5$ | 7 | | G García López | 3 | 7 | 6 | | | | | | | | | |
| 6 | J Melzer | 2 | 7 | 6$^6$ | | | | | | | | | | | | | | |

### Bottom half

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| LL | W Odesnik | 6 | 5 | 6 | | | | | | | | | | | | | |
| | D Young | 1 | 7 | 4 | LL | W Odesnik | 4 | 4 | | | | | | | | | |
| WC | M Mirnyi | 6$^4$ | 7 | 2 | | Y-h Lu | 6 | 6 | | | | | | | | | |
| | Y-h Lu | 7 | 5 | 6 | | | | | | Y-h Lu | 2 | 6$^5$ | | | | | |
| | B Reynolds | 7 | 6 | | | | | | 4 | R Štěpánek | 6 | 7 | | | | | |
| Q | B Dorsch | 5 | 4 | | | B Reynolds | 5 | 6$^5$ | | | | | | | | | |
| | P Capdeville | 6$^2$ | 1 | | 4 | R Štěpánek | 7 | 7 | | | | | | | | | |
| 4 | R Štěpánek | 7 | 6 | | | | | | | | | | 4 | R Štěpánek | 6$^5$ | 6 | 6 |
| 8 | K Vliegen | 6 | 7 | | | | | | | | | | WC | R Ginepri | 7 | 4 | 1 |
| | V Hănescu | 4 | 6$^4$ | | 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 | | | | | | | | | | | | | | |