# 2005 Mercedes-Benz Cup – Singles

Tommy Haas was the defending champion, but lost in the second round this year.
Andre Agassi won the tournament, beating Gilles Müller in the final, 6–4, 7–5.

## Seeds

* Andre Agassi (champion)
* Dominik Hrbatý (semifinals)
* Nicolas Kiefer (first round, retired due to a throat infection)
* Tommy Haas (second round)
* Taylor Dent (withdrew due to heat exhaustion)
* Mario Ančić (first round)
* Sébastien Grosjean (first round)
* Greg Rusedski (withdrew due to a neck injury)
* Vincent Spadea (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

| Semifinals | Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final |
| 1 | Andre Agassi | 6 | 6 | | | | | |
| | Juan Ignacio Chela | 4 | 2 | | | | | |
| | Juan Ignacio Chela | 4 | 2 | | 1 | Andre Agassi | 6 | 7 |
| | | | | | | Gilles Müller | 4 | 5 |
| | Gilles Müller | 4 | 7$^7$ | 6 | | Gilles Müller | 4 | 5 |
| 2 | Dominik Hrbatý | 6 | 6$^4$ | 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 Agassi | 6 | 6 | | | | | | | | | | | | | | | |
| LL | J-R Lisnard | 1 | 0 | | 1 | A Agassi | 6 | 7 | | | | | | | | | | |
| | K Carlsen | 6$^2$ | 7$^7$ | 4 | | K Kim | 2 | 5 | | | | | | | | | | |
| | K Kim | 7$^7$ | 6$^3$ | 6 | | | | | | 1 | A Agassi | 6 | 4 | 6 | | | | |
| WC | P Goldstein | 6 | 6 | | | | | | | | P Srichaphan | 2 | 6 | 4 | | | | |
| | C Saulnier | 4 | 4 | | WC | P Goldstein | 1 | 4 | | | | | | | | | | |
| | P Srichaphan | 7$^8$ | 6$^4$ | 6 | | P Srichaphan | 6 | 6 | | | | | | | | | | |
| 6 | M Ančić | 6$^6$ | 7$^7$ | 2 | | | | | | | | | | | 1 | A Agassi | 6 | 6 |
| 4 | T Haas | 6 | 6 | | | | | | | | | | | | | JI Chela | 4 | 2 |
| | I Karlović | 4 | 4 | | 4 | T Haas | 6 | 3 | 4 | | | | | | | | | |
| | X Malisse | 6 | 6 | | | X Malisse | 1 | 6 | 6 | | | | | | | | | |
| | H-t Lee | 3 | 4 | | | | | | | | X Malisse | 4 | 6$^3$ | | | | | |
| | JI Chela | 6$^7$ | 6 | 6 | | | | | | | JI Chela | 6 | 7$^7$ | | | | | |
| | M Baghdatis | 7$^9$ | 3 | 4 | | JI Chela | 3 | 6 | 6 | | | | | | | | | |
| LL | N Okun | 1 | 2 | | LL | D Tursunov | 6 | 4 | 2 | | | | | | | | | |
| LL | D Tursunov | 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 | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals | Semifinals |
| 9 | V Spadea | 6 | 2 | 4 | | | | | | | | | | | | | | |
| Q | Z Fleishman | 4 | 6 | 6 | Q | Z Fleishman | 3 | 5 | | | | | | | | | | |
| | G Müller | 2 | 6 | 7$^8$ | | G Müller | 6 | 7 | | | | | | | | | | |
| Q | S de Chaunac | 6 | 3 | 6$^6$ | | | | | | G Müller | 7$^7$ | 7 | | | | | | |
| | R Ginepri | 6 | 6 | | | | | | | R Ginepri | 6$^5$ | 5 | | | | | | |
| | W Arthurs | 4 | 4 | | | R Ginepri | 6 | 7$^7$ | | | | | | | | | | |
| WC | J Blake | 3 | | | WC | J Blake | 3 | 6$^2$ | | | | | | | | | | |
| 3 | N Kiefer | 2$^r$ | | | | | | | | | | | | | G Müller | 4 | 7$^7$ | 6 |
| 7 | S Grosjean | 6 | 2 | 3 | | | | | | | | | | 2 | D Hrbatý | 6 | 6$^4$ | 1 |
| | R Mello | 1 | 6 | 6 | | R Mello | 6 | 6 | | | | | | | | | | |
| Q | A Hadad | 2 | 6 | 6 | Q | A Hadad | 3 | 1 | | | | | | | | | | |
| WC | C Mamiit | 6 | 3 | 3 | | | | | | R Mello | 6 | 6$^9$ | 2 | | | | | |
| Q | J Björkman | 4 | 4 | | | | | | 2 | D Hrbatý | 4 | 7$^{11}$ | 6 | | | | | |
| | J Hernych | 6 | 6 | | | J Hernych | 4 | 2 | | | | | | | | | | |
| | K Beck | 4 | 1 | | 2 | D Hrbatý | 6 | 6 | | | | | | | | | | |
| 2 | D Hrbatý | 6 | 6 | | | | | | | | | | | | | | | |