1991 ATP Tour World Championships – Singles
| Singles | |
|---|---|
| 1991 ATP Tour World Championships | |
| Champion |  Pete Sampras |
| Runner-up | Jim Courier |
| Score | 3–6, 7–6(7–5), 6–3, 6–4 |
Andre Agassi was the defending champion, but Jim Courier defeated him in the semifinal.
Draw
Finals
| Semifinals | Final | ||||||||||||||
| 4 |  Ivan Lendl
| 2 | 3 | ||||||||||||
| 6 | Pete Sampras
| 6 | 6 | ||||||||||||
| 6 | Pete Sampras
| 3 | 7 | 6 | 6 | ||||||||||
| 1 | Jim Courier
| 6 | 65 | 3 | 4 | ||||||||||
| 7 | Andre Agassi
| 3 | 5 | ||||||||||||
| 1 | Jim Courier
| 6 | 7 | ||||||||||||
Ilie Năstase Group
| Courier
|
Lendl
|
 Forget
|
Nováček
|
RR W–L |
Set W–L |
Game W–L |
Standings | ||
| 1 | Jim Courier
|
2–6, 3–6 | 7–6(7–4), 6–4 | 6–7(6–8), 7–6(7–5), 6–4 | 2–1 | 4–3 | 37–39 | 2 | |
| 4 | Ivan Lendl
|
6–2, 6–3 | 6–2, 6–4 | 6–2, 6–2 | 3–0 | 6–0 | 36–15 | 1 | |
| 5 | Guy Forget
|
6–7(4–7), 4–6 | 2–6, 4–6 | 6–3, 7–6(7–3) | 1–2 | 2–4 | 29–34 | 3 | |
| 8 | Karel Nováček
|
7–6(8–6), 6–7(5–7), 4–6 | 2–6, 2–6 | 3–6, 6–7(3–7) | 0–3 | 1–6 | 30–44 | 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.
John Newcombe Group
 Becker
|
Stich
|
Sampras
|
Agassi
|
RR W–L |
Set W–L |
Game W–L |
Standings | ||
| 2 | Boris Becker
|
7–6(7–1), 6–3 | 6–4, 6–7(3–7), 6–1 | 3–6, 5–7 | 2–1 | 4–3 | 39–34 | 3 | |
| 3 | Michael Stich
|
6–7(1–7), 3–6 | 2–6, 6–7(3–7) | 5–7, 3–6 | 0–3 | 0–6 | 25–39 | 4 | |
| 6 | Pete Sampras
|
4–6, 7–6(7–3), 1–6 | 6–2, 7–6(7–3) | 6–3, 1–6, 6–3 | 2–1 | 5–3 | 38–38 | 2 | |
| 7 | Andre Agassi
|
6–3, 7–5 | 7–5, 6–3 | 3–6, 6–1, 3–6 | 2–1 | 5–2 | 38–29 | 1 |
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.