# 2006 U.S. Men's Clay Court Championships – Singles
## Seeds

A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
* Andy Roddick (quarterfinals)
* James Blake (first round)
* Robby Ginepri (first round)
* Marcos Baghdatis (second round, retired because of a back injury)
* Tommy Haas (semifinals, retired because of a wrist injury)
* Luis Horna (first round)
* Paul Goldstein (semifinals)
* Juan Mónaco (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
| 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 | Final | Final | Final | Final | Final |
| 1 | A Roddick | 6 | 6 | | | | | | | | | | | | | | | | | | | |
| | P Capdeville | 3 | 2 | | 1 | A Roddick | 6 | 6 | | | | | | | | | | | | | | |
| | O Marach | 6 | 6 | | | O Marach | 3 | 4 | | | | | | | | | | | | | | |
| | J A Marín | 4 | 1 | | | | | | 1 | A Roddick | 7$^7$ | 4 | 4 | | | | | | | | | |
| | A Waske | 6 | 2 | 6$^2$ | | | | | 5 | T Haas | 6$^1$ | 6 | 6 | | | | | | | | | |
| | J Vaněk | 4 | 6 | 7$^7$ | | A Waske | 1 | 6$^7$ | | | | | | | | | | | | | | |
| | Ó Hernández | 1 | 4 | | 5 | T Haas | 6 | 7$^9$ | | | | | | | | | | | | | | |
| 5 | T Haas | 6 | 6 | | | | | | | | | | | 5 | T Haas | 1$^r$ | | | | | | |
| WC/4 | M Baghdatis | 6 | 7$^7$ | | | | | | | | | | | WC | M Fish | 4 | | | | | | |
| WC | J Witten | 4 | 6$^2$ | | WC/4 | M Baghdatis | 2 | 1$^r$ | | | | | | | | | | | | | | |
| | V Spadea | 6 | 6 | | | V Spadea | 6 | 3 | | | | | | | | | | | | | | |
| | C Berlocq | 1 | 3 | | | | | | | V Spadea | 6 | 6$^1$ | 2 | | | | | | | | | |
| | R Schüttler | 6 | 6 | | | | | | WC | M Fish | 4 | 7$^7$ | 6 | | | | | | | | | |
| Q | G Müller | 0 | 3 | | | R Schüttler | | | | | | | | | | | | | | | | |
| WC | M Fish | 6 | 1 | 7$^7$ | WC | M Fish | w/o | | | | | | | | | | | | | | | |
| 8 | J Mónaco | 2 | 6 | 6$^5$ | | | | | | | | | | | | | | WC | Mardy Fish | 3 | 6 | 6 |
| 7 | P Goldstein | 6 | 6 | | | | | | | | | | | | | | | | J Melzer | 6 | 3 | 4 |
| | J Tipsarević | 3 | 3 | | 7 | P Goldstein | 6 | 6 | | | | | | | | | | | | | | |
| Q | I Kunitsyn | 5 | 6 | 3 | Q | S Jenkins | 4 | 1 | | | | | | | | | | | | | | |
| Q | S Jenkins | 7 | 2 | 6 | | | | | 7 | P Goldstein | 6 | 6 | | | | | | | | | | |
| | R Sabău | 5 | 7 | 5 | | | | | | Montañés | 3 | 4 | | | | | | | | | | |
| | T Behrend | 7 | 5 | 7 | | T Behrend | 2 | 3 | | | | | | | | | | | | | | |
| | Montañés | 6 | 6 | | | Montañés | 6 | 6 | | | | | | | | | | | | | | |
| 3 | R Ginepri | 4 | 4 | | | | | | | | | | | 7 | P Goldstein | 3 | 4 | | | | | |
| 6 | L Horna | 3 | 4 | | | | | | | | | | | | J Melzer | 6 | 6 | | | | | |
| | M Daniel | 6 | 6 | | | M Daniel | 6$^2$ | 4 | | | | | | | | | | | | | | |
| | J Melzer | 7$^9$ | 6 | | | J Melzer | 7$^7$ | 6 | | | | | | | | | | | | | | |
| | I Minář | 6$^7$ | 0 | | | | | | | J Melzer | 7 | 6 | | | | | | | | | | |
| | B Reynolds | 2 | 1 | | | | | | | F Vicente | 5 | 4 | | | | | | | | | | |
| | F Vicente | 6 | 6 | | | F Vicente | 6 | 7 | | | | | | | | | | | | | | |
| Q | A Dupuis | 7$^7$ | 3 | 6 | Q | A Dupuis | 2 | 5 | | | | | | | | | | | | | | |
| 2 | J Blake | 6$^2$ | 6 | 1 | | | | | | | | | | | | | | | | | | |