2003 U.S. Men's Clay Court Championships – Doubles
| Doubles | |
|---|---|
| 2003 U.S. Men's Clay Court Championships | |
| Champions | Mark Knowles Daniel Nestor |
| Runners-up | Jan-Michael Gambill Graydon Oliver |
| Score | 6–4, 6–3 |
Mardy Fish and Andy Roddick were the defending champions but lost in the semifinals to Mark Knowles and Daniel Nestor.
Knowles and Nestor won in the final 6–4, 6–3 against Jan-Michael Gambill and Graydon Oliver.
Seeds
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
- Mark Knowles / Daniel Nestor (champions)
- Jan-Michael Gambill / Graydon Oliver (final)
- Sebastián Prieto / André Sá (first round)
- Devin Bowen / Ashley Fisher (semifinals)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | M Knowles D Nestor | 3 | 6 | 71 | |||||||||||||||||||||||
| WC | P Goldstein R Kendrick | 6 | 1 | 61 | 1 | M Knowles D Nestor | 6 | 6 | |||||||||||||||||||
| M Merklein J Morrison | 6 | 6 | M Merklein J Morrison | 3 | 1 | ||||||||||||||||||||||
| WC | J Blake T Blake | 4 | 4 | 1 | M Knowles D Nestor | 3 | 6 | 6 | |||||||||||||||||||
| 3 | S Prieto A Sá | 1 | 2 | M Fish A Roddick | 6 | 3 | 2 | ||||||||||||||||||||
| M Fish A Roddick | 6 | 6 | M Fish A Roddick | 7 | 6 | ||||||||||||||||||||||
| J Thomas B Vahaly | 6 | 6 | J Thomas B Vahaly | 5 | 3 | ||||||||||||||||||||||
| T Dent C Mamiit | 4 | 2 | 1 | M Knowles D Nestor | 6 | 6 | |||||||||||||||||||||
| B MacPhie T Martin | 5 | 4 | 2 | J-M Gambill G Oliver | 4 | 3 | |||||||||||||||||||||
| S Aspelin N Kiefer | 7 | 6 | S Aspelin N Kiefer | ||||||||||||||||||||||||
| T Shimada M Wakefield | 4 | 5 | 4 | D Bowen A Fisher | w/o | ||||||||||||||||||||||
| 4 | D Bowen A Fisher | 6 | 7 | 4 | D Bowen A Fisher | 66 | 5 | ||||||||||||||||||||
| J Gimelstob S Humphries | 3 | 6 | 6 | 2 | J-M Gambill G Oliver | 78 | 7 | ||||||||||||||||||||
| K Carlsen J Melzer | 6 | 3 | 3 | J Gimelstob S Humphries | 5 | 6 | 66 | ||||||||||||||||||||
| L Horna S Roitman | 4 | 0r | 2 | J-M Gambill G Oliver | 7 | 4 | 78 | ||||||||||||||||||||
| 2 | J-M Gambill G Oliver | 6 | 1 | ||||||||||||||||||||||||