1981 Toronto Molson Light Challenge

Vitas Gerulaitis won the final 6–4, 4–6, 6–3, 6–3 over John McEnroe.

1981 Toronto Molson Light Challenge
1981 Toronto Molson Light Challenge
Champion	Vitas Gerulaitis
Runner-up	John McEnroe
Score	6–4, 4–6, 6–3, 6–3

Main article: Toronto Indoor

Players

1. Vitas Gerulaitis (champion)
2. John McEnroe (final)
3. Björn Borg (semifinals)
4. Jimmy Connors (semifinals)
5. Sandy Mayer (round-robin)
6. Johan Kriek (round-robin)
7. Wojciech Fibak (round-robin)
8. Ilie Năstase (round-robin)

Draw

Finals

	Semi-finals							Final
		Jimmy Connors	7	2	2
		Vitas Gerulaitis	6	6	6
									Vitas Gerulaitis	6	4	6	6
									John McEnroe	4	6	3	3
		John McEnroe	6	3	7
		Björn Borg	3	6	6

Group A

		Jimmy Connors	Björn Borg	Sandy Mayer	Wojciech Fibak	RR W–L	Set W–L	Game W–L	Standings
	Jimmy Connors		7-5, 6–3	6–4, 6–2	6–3, 6–4	3-0	6-0	37-21	1
	Björn Borg	5–7, 3–6		6–4, 3–6, 6–2	6–3, 5–7, 6–3	2-1	4-4	40-38	2
	Sandy Mayer	4–6, 2–6	4–6, 6–3, 2–6		5–7, 6–3, 6–2	1–2	3-5	35-39	3
	Wojciech Fibak	3–6, 4–6	3–6, 7–5, 3–6	7–5, 3–6, 2–6		0–3	2-6	32-46	4

Group B

		John McEnroe	Vitas Gerulaitis	Johan Kriek	Ilie Năstase	RR W–L	Set W–L	Game W–L	Standings
	John McEnroe		6-3, 6–3	6–4, 3–6, 6–3	6–1, 2-0 Def	3-0	6-1	39-20	1
	Vitas Gerulaitis	3–6, 3–6		6–3, 4–6, 6–3	6–1, 6–2	2-1	4-3	34-27	2
	Johan Kriek	4–6, 6–3, 3–6	3–6, 6–4, 3–6		6–4, 6–4	1–2	4-4	37-39	3
	Ilie Năstase	1–6, 0–2 Def	1–6, 2–6	4–6, 4–6		0–3	0-6	12-36	4