Bob Bryan and Mike Bryan defeated Michaël Llodra and Fabrice Santoro in the final, 6–7(6–8), 6–3, 3–6, 7–6(7–3), 6–4 to win the doubles tennis title at the 2003 Tennis Masters Cup. It was their first Tour Finals title.
| Doubles | |
|---|---|
| 2003 Tennis Masters Cup | |
| Champions |  Bob Bryan Mike Bryan |
| Runners-up |  Michaël Llodra Fabrice Santoro |
| Score | 6–7(6–8), 6–3, 3–6, 7–6(7–3), 6–4 |
Ellis Ferreira and Rick Leach were the reigning champions, but did not compete that year.
Seeds edit
Champion seeds are indicated in bold text while text in italics indicates the round in which those seeds were eliminated.
Bob Bryan / Mike Bryan (champions)
Mahesh Bhupathi / 
Max Mirnyi (round robin)
Jonas Björkman / 
Todd Woodbridge (round robin)
Mark Knowles / 
Daniel Nestor (semifinals)- Wayne Arthurs / Paul Hanley (round robin)
Michaël Llodra / Fabrice Santoro (final)
Martin Damm / Cyril Suk (round robin)
Gastón Etlis / Martín Rodríguez (semifinals)
Draw edit
Key edit
- 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 edit
| Semifinals | Final | ||||||||||||||
| 1 | Bob Bryan Mike Bryan
| 6 | 6 | ||||||||||||
| 8 |  Gastón Etlis Martin Rodríguez
| 2 | 4 | ||||||||||||
| 1 | Bob Bryan Mike Bryan
| 66 | 6 | 3 | 77 | 6 | |||||||||
| 6 | Michaël Llodra Fabrice Santoro
| 78 | 3 | 6 | 63 | 4 | |||||||||
| 4 |  Mark Knowles Daniel Nestor
| 1 | 3 | ||||||||||||
| 6 | Michaël Llodra Fabrice Santoro
| 6 | 6 | ||||||||||||
Red group edit
| Bryan Bryan
|
 Björkman Woodbridge
|
Llodra Santoro
|
 Damm Suk
|
RR W–L |
Set W–L |
Game W–L |
Standings | ||
| 1 | Bob Bryan Mike Bryan
|
4–6, 6–3, 7–6(11–9) | 6–4, 5–7, 6–4 | 7–5, 6–7(0–7), 7–6(7–4) | 3–0 | 6–3 | 54–48 | 1 | |
| 3 | Jonas Björkman Todd Woodbridge
|
6–4, 3–6, 6–7(9–11) | 6–7(1–7), 6–3, 4–6 | 6–3, 6–3 | 1–2 | 4–4 | 43–39 | 3 | |
| 6 | Michaël Llodra Fabrice Santoro
|
4–6, 7–5, 4–6 | 7–6(7–1), 3–6, 6–4 | 6–3, 7–6(7–5) | 2–1 | 5–3 | 44–42 | 2 | |
| 7 | Martin Damm Cyril Suk
|
5–7, 7–6(7–0), 6–7(4–7) | 3–6, 3–6 | 3–6, 6–7(5–7) | 0–3 | 1–6 | 33–45 | 4 |
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.
Blue group edit
 Bhupathi Mirnyi
|
Knowles Nestor
|
Arthurs Hanley
|
Etlis Rodríguez
|
RR W–L |
Set W–L |
Game W–L |
Standings | ||
| 2 | Mahesh Bhupathi Max Mirnyi
|
4–6, 7–6(8–6), 6–7(4–7) | 6–4, 7–6(7–4) | 4–6, 4–6 | 1–2 | 3–4 | 38–41 | 3 | |
| 4 | Mark Knowles Daniel Nestor
|
6–4, 6–7(6–8), 7–6(7–4) | 6–4, 6–7(5–7), 7–6(8–6) | 6–2, 6–1 | 3–0 | 6–2 | 50–37 | 1 | |
| 5 | Wayne Arthurs Paul Hanley
|
4–6, 6–7(4–7) | 4–6, 7–6(7–5), 6–7(6–8) | 4–6, 7–6(7–5), 7–6(11–9) | 1–2 | 3–5 | 45–50 | 4 | |
| 8 | Gastón Etlis Martín Rodríguez
|
6–4, 6–4 | 2–6, 1–6 | 6–4, 6–7(5–7), 6–7(9–11) | 1–2 | 3–4 | 33–38 | 2 |
Standings are determined by: 1. number of wins; 2. number of matches; 3. in two-players-ties, head-to-head records; 4. in three-players-ties, percentage of sets won, or of games won; 5. steering-committee decision.