1981 Toronto Molson Light Challenge
# 1981 Toronto Molson Light Challenge

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

## Players

* Vitas Gerulaitis (champion)
* John McEnroe (final)
* Björn Borg (semifinals)
* Jimmy Connors (semifinals)
* Sandy Mayer (round-robin)
* Johan Kriek (round-robin)
* Wojciech Fibak (round-robin)
* Ilie Năstase (round-robin)

## Draw

### Finals

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