| Singles | ||||
|---|---|---|---|---|
| 2003 Tennis Masters Cup | ||||
| Final | ||||
| Champion |  Roger Federer | |||
| Runner-up |  Andre Agassi | |||
| Score | 6–3, 6–0, 6–4 | |||
| Details | ||||
| Draw | 8 | |||
| Events | ||||
| ||||
| ||||
Roger Federer defeatedAndre Agassi in the final, 6–3, 6–0, 6–4 to win the singles tennis title at the 2003 Tennis Masters Cup. It was the first of an eventual then-record sixTour Finals titles for Federer.
Lleyton Hewitt was the reigning champion, but did not qualify this year.
A champion seed is indicated in bold text while text in italics indicates the round in which that seed was eliminated.
Andy Roddick(semifinals)
Juan Carlos Ferrero(round robin)Roger Federer (champion)
Guillermo Coria(round robin)Andre Agassi(final)
Rainer Schüttler(semifinals)Carlos Moyá(round robin)David Nalbandian(round robin)
Mark Philippoussis(Did not play)Key
| Semifinals | Final | ||||||||||||||
| 6 | Rainer Schüttler | 7 | 0 | 4 | |||||||||||
| 5 | Andre Agassi | 5 | 6 | 6 | |||||||||||
| 5 | Andre Agassi | 3 | 0 | 4 | |||||||||||
| 3 | Roger Federer | 6 | 6 | 6 | |||||||||||
| 3 | Roger Federer | 77 | 6 | ||||||||||||
| 1 | Andy Roddick | 62 | 2 | ||||||||||||
| Roddick | Coria | Schüttler | Moyá | RR W–L | Set W–L | Game W–L | Standings | ||
| 1 | Andy Roddick | 6–3, 6–7(3–7), 6–3 | 6–4, 6–7(4–7), 6–7(3–7) | 6–2, 3–6, 6–3 | 2–1 | 5–4 | 51–42 | 2 | |
| 4 | Guillermo Coria | 3–6, 7–6(7–3), 3–6 | 3–6, 6–4, 2–6 | 6–2, 6–3 | 1–2 | 4–4 | 36–39 | 3 | |
| 6 | Rainer Schüttler | 4–6, 7–6(7–4), 7–6(7–3) | 6–3, 4–6, 6–2 | 5–7, 4–6 | 2–1 | 4–4 | 43–42 | 1 | |
| 7 | Carlos Moyá | 2–6, 6–3, 3–6 | 2–6, 3–6 | 7–5, 6–4 | 1–2 | 3–4 | 29–36 | 4 |
Standings are determined by: 1. number of wins; 2. number of matches; 3. head-to-head records in two-player ties; 4. in three-player ties, percentage of sets won, or of games won; 5. steering-committee decision.
| Ferrero | Federer | Agassi | Nalbandian | RR W–L | Set W–L | Game W–L | Standings | ||
| 2 | Juan Carlos Ferrero | 3–6, 1–6 | 6–2, 3–6, 4–6 | 3–6, 1–6 | 0–3 | 1–6 | 21–38 | 4 | |
| 3 | Roger Federer | 6–3, 6–1 | 6–7(3–7), 6–3, 7–6(9–7) | 6–3, 6–0 | 3–0 | 6–1 | 43–23 | 1 | |
| 5 | Andre Agassi | 2–6, 6–3, 6–4 | 7–6(7–3), 3–6, 6–7(7–9) | 7–6(12–10), 3–6, 6–4 | 2–1 | 5–4 | 46–48 | 2 | |
| 8 | David Nalbandian | 6–3, 6–1 | 3–6, 0–6 | 6–7(10–12), 6–3, 4–6 | 1–2 | 3–4 | 31–32 | 3 |
Standings are determined by: 1. number of wins; 2. number of matches; 3. head-to-head records in two-player ties; 4. in three-player ties, percentage of sets won, or of games won; 5. steering-committee decision.