# 2008 U.S. Men's Clay Court Championships – Singles

Ivo Karlović was the defending champion, but chose not to participate that year.
Seventh-seeded Marcel Granollers Pujol won in the final 6–4, 1–6, 7–5, against James Blake.

## Seeds

* James Blake (final)
* Tommy Haas (first round)
* Mardy Fish (quarterfinals)
* Sam Querrey (first round)
* Agustín Calleri (quarterfinals)
* Dudi Sela (second round)
* Marcel Granollers Pujol (champion)
* Óscar Hernández (semifinals)

## 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 | Final |
| 1 | James Blake | 6 | 7 | | | | | | |
| 8 | Óscar Hernández | 3 | 6$^3$ | | | | | | |
| 8 | Óscar Hernández | 3 | 6$^3$ | | 1 | James Blake | 4 | 6 | 5 |
| | | | | | 7 | Marcel Granollers Pujol | 6 | 1 | 7 |
| 7 | Marcel Granollers Pujol | 3 | 7 | 6 | 7 | Marcel Granollers Pujol | 6 | 1 | 7 |
| | Wayne Odesnik | 6 | 5 | 3 | | | | | |

### Top 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 |
| 1 | J Blake | 6 | 6 | | | | | | | | | | | | | |
| WC | K Nishikori | 4 | 4 | | 1 | J Blake | 6 | 6 | | | | | | | | |
| Q | R Harrison | 6 | 6 | | Q | R Harrison | 3 | 2 | | | | | | | | |
| | P Cuevas | 4 | 3 | | | | | | 1 | J Blake | 6 | 6 | | | | |
| | P Capdeville | 6 | 6 | | | | | | 5 | A Calleri | 4 | 3 | | | | |
| Q | D Hartfield | 0 | 4 | | | P Capdeville | 2 | 1 | | | | | | | | |
| | V Spadea | 4 | 3 | | 5 | A Calleri | 6 | 6 | | | | | | | | |
| 5 | A Calleri | 6 | 6 | | | | | | | | | | 1 | J Blake | 6 | 7 |
| 3 | M Fish | 7 | 6 | | | | | | | | | | 8 | Ó Hernández | 3 | 6$^3$ |
| | R Schüttler | 6$^4$ | 3 | | 3 | M Fish | 6 | 6 | | | | | | | | |
| | C Berlocq | 3 | 6 | 5 | WC | H Armando | 3 | 2 | | | | | | | | |
| WC | H Armando | 6 | 4 | 7 | | | | | 3 | M Fish | 2 | 6$^5$ | | | | |
| Q | F Vicente | 3 | 6$^5$ | | | | | | 8 | Ó Hernández | 6 | 7 | | | | |
| | D Young | 6 | 7 | | | D Young | 4 | 4 | | | | | | | | |
| | JP Brzezicki | 6 | 3 | 2 | 8 | Ó Hernández | 6 | 6 | | | | | | | | |
| 8 | Ó Hernández | 3 | 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 |
| 7 | M Granollers Pujol | 6 | 6 | | | | | | | | | | | | | | | |
| | E Gulbis | 2 | 0 | | 7 | M Granollers Pujol | 6 | 6 | | | | | | | | | | |
| | P Luczak | 6 | 6 | | | P Luczak | 3 | 2 | | | | | | | | | | |
| Q | H Levy | 4 | 4 | | | | | | 7 | M Granollers Pujol | 6 | 6 | | | | | | |
| | V Troicki | 3 | 4 | | | | | | | M Daniel | 3 | 2 | | | | | | |
| | M Daniel | 6 | 6 | | | M Daniel | 7 | 6 | | | | | | | | | | |
| | N Massú | 5 | 6 | 6 | | N Massú | 6$^3$ | 2 | | | | | | | | | | |
| 4 | S Querrey | 7 | 4 | 4 | | | | | | | | | | 7 | M Granollers Pujol | 3 | 7 | 6 |
| 6 | D Sela | 7 | 6 | | | | | | | | | | | | W Odesnik | 6 | 5 | 3 |
| | R Ginepri | 6$^5$ | 2 | | 6 | D Sela | 3 | 5 | | | | | | | | | | |
| | W Odesnik | 6 | 6 | | | W Odesnik | 6 | 7 | | | | | | | | | | |
| WC | A Delić | 3 | 3 | | | | | | | W Odesnik | 2 | 7 | 6 | | | | | |
| | S Roitman | 3 | 7 | 6 | | | | | | S Roitman | 6 | 6$^4$ | 1 | | | | | |
| | J Isner | 6 | 6$^6$ | 3 | | S Roitman | 6 | 7 | | | | | | | | | | |
| | I Kunitsyn | 5 | 6 | 6 | | I Kunitsyn | 3 | 6$^3$ | | | | | | | | | | |
| 2 | T Haas | 7 | 4 | 4 | | | | | | | | | | | | | | |