# 1986 Player's Canadian Open – Men's singles

John McEnroe was the defending champion, but lost in the third round this year.
Boris Becker won the title, defeating Stefan Edberg 6–4, 3–6, 6–3 in the final.

## Seeds

* Ivan Lendl (third round)
* Boris Becker (champion)
* Yannick Noah (third round)
* Stefan Edberg (final)
* John McEnroe (third round)
* Tim Mayotte (second round)
* Brad Gilbert (third round)
* Jimmy Arias (third round)
* Jakob Hlasek (second round)
* Slobodan Živojinović (second round)
* Matt Anger (first round)
* Robert Seguso (quarterfinals)
* Tim Wilkison (third round)
* David Pate (first round)
* Kevin Curren (quarterfinals)
* Ramesh Krishnan (second round)

## Draw
### Key

* 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

| Semifinals | Semifinals | Semifinals | Semifinals | Final | Final | Final | Final | Final |
| | Christo Steyn | 1 | 2 | | | | | |
| 4 | Stefan Edberg | 6 | 6 | | | | | |
| 4 | Stefan Edberg | 6 | 6 | 4 | Stefan Edberg | 4 | 6 | 3 |
| | | | | 2 | Boris Becker | 6 | 3 | 6 |
| | Jonathan Canter | 6 | 6 | 2 | Boris Becker | 6 | 3 | 6 |
| 2 | Boris Becker | 7 | 7 | | | | | |

### Top half
#### Section 1

| First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | 1 | I Lendl | 6 | 6 | | | | | | | | | |
| Q | W Cowan | 2 | 2 | | G Holmes | 2 | 2 | | | | | | | | | |
| | G Holmes | 6 | 6 | | | | | | 1 | I Lendl | 6 | 6 | | | | |
| | M Wostenholme | 6 | 4 | | | | | | 15 | K Curren | 7 | 7 | | | | |
| | N Odizor | 7 | 6 | | N Odizor | 1 | 4 | | | | | | | | | |
| | M Leach | 2 | 4 | 15 | K Curren | 6 | 6 | | | | | | | | | |
| 15 | K Curren | 6 | 6 | | | | | | | | | | 15 | K Curren | 6 | 6 |
| 10 | S Živojinović | 6 | 6 | | | | | | | | | | | C Steyn | 7 | 7 |
| Q | M Edmondson | 2 | 4 | 10 | S Živojinović | 3 | 6 | 6 | | | | | | | | |
| | C Steyn | 6 | 7 | | C Steyn | 6 | 2 | 7 | | | | | | | | |
| WC | S Bonneau | 4 | 6 | | | | | | | C Steyn | 6 | 6 | | | | |
| | M Woodforde | 6 | 6 | | | | | | 8 | J Arias | 3 | 1 | | | | |
| | B Green | 7 | 7 | | B Green | 4 | 1 | | | | | | | | | |
| | | | | 8 | J Arias | 6 | 6 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 4 | S Edberg | 6 | 1 | 6 | | | | | | | | | |
| | B Dyke | 4 | 2 | | Q | C Hooper | 2 | 6 | 3 | | | | | | | | | |
| Q | C Hooper | 6 | 6 | | | | | | | 4 | S Edberg | 6 | 6 | | | | | |
| | V Amritraj | 6 | 6 | 6 | | | | | | 13 | T Wilkison | 3 | 4 | | | | | |
| | J Brown | 4 | 7 | 4 | | V Amritraj | 7 | 1$^r$ | | | | | | | | | | |
| | G Forget | 3 | 7 | 3 | 13 | T Wilkison | 6 | 2 | | | | | | | | | | |
| 13 | T Wilkison | 6 | 5 | 6 | | | | | | | | | | | 4 | S Edberg | 6 | 6 |
| 12 | R Seguso | 6 | 7 | | | | | | | | | | | | 12 | R Seguso | 1 | 2 |
| WC | A Sznajder | 3 | 5 | | 12 | R Seguso | 7 | 3 | 6 | | | | | | | | | |
| | R Acuña | 6 | 5 | 3 | | A Mansdorf | 5 | 6 | 1 | | | | | | | | | |
| | A Mansdorf | 2 | 7 | 6 | | | | | | 12 | R Seguso | 4 | 6 | 7 | | | | |
| WC | P McEnroe | 4 | 5 | | | | | | | 5 | J McEnroe | 6 | 3 | 5 | | | | |
| | T Nelson | 6 | 7 | | | T Nelson | 2 | 3 | | | | | | | | | | |
| | | | | | 5 | J McEnroe | 6 | 6 | | | | | | | | | | |

#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 6 | T Mayotte | 6 | 4 | 1 | | | | | | | | | |
| | L Lavalle | 6 | 1 | 2 | | S Giammalva Jr. | 3 | 6 | 6 | | | | | | | | | |
| | S Giammalva Jr. | 3 | 6 | 6 | | | | | | | S Giammalva Jr. | 4 | 7 | 3 | | | | |
| Q | T Mmoh | 7 | 1 | 2 | | | | | | | M Freeman | 6 | 5 | 6 | | | | |
| | P Arraya | 5 | 6 | 6 | | P Arraya | 0 | 4 | | | | | | | | | | |
| | M Freeman | 6 | 6 | 6 | | M Freeman | 6 | 6 | | | | | | | | | | |
| 11 | M Anger | 7 | 4 | 2 | | | | | | | | | | | M Freeman | 6 | 3 | 3 |
| 14 | D Pate | 2 | 5 | | | | | | | | | | | | J Canter | 3 | 6 | 6 |
| | J Canter | 6 | 7 | | | J Canter | 6 | 2 | 6 | | | | | | | | | |
| | G Michibata | 2 | 7 | 5 | Q | J Blake | 2 | 6 | 1 | | | | | | | | | |
| Q | J Blake | 6 | 6 | 7 | | | | | | | J Canter | 3 | 7 | 6 | | | | |
| | D Visser | 6 | 2 | 6 | | | | | | 3 | Y Noah | 6 | 5 | 4 | | | | |
| | S Davis | 2 | 6 | 3 | | D Visser | 4 | 4 | | | | | | | | | | |
| | | | | | 3 | Y Noah | 6 | 6 | | | | | | | | | | |

#### Section 4

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | | | | | 7 | B Gilbert | 6 | 6 | | | | | | | | | | |
| | M Šrejber | 4 | 6 | | | G Layendecker | 0 | 4 | | | | | | | | | | |
| | G Layendecker | 6 | 7 | | | | | | | 7 | B Gilbert | 6 | 3 | 4 | | | | |
| | B Schultz | 4 | 7 | 7 | | | | | | | B Schultz | 3 | 6 | 6 | | | | |
| | M Davis | 6 | 6 | 6 | | B Schultz | 6 | 6 | 6 | | | | | | | | | |
| Q | J Rive | 5 | 5 | | 9 | J Hlasek | 7 | 4 | 2 | | | | | | | | | |
| 9 | J Hlasek | 7 | 7 | | | | | | | | | | | | | B Schultz | 4 | 6 |
| 16 | R Krishnan | 6 | 6 | | | | | | | | | | | | 2 | B Becker | 6 | 7 |
| WC | P Fleming | 2 | 3 | | 16 | R Krishnan | 4 | 6 | 3 | | | | | | | | | |
| Q | RA Viver | 4 | 6 | 6 | | F Maciel | 6 | 1 | 6 | | | | | | | | | |
| | F Maciel | 6 | 4 | 7 | | | | | | | F Maciel | 3 | 3 | | | | | |
| | A Krickstein | 6 | 3 | 6 | | | | | | 2 | B Becker | 6 | 6 | | | | | |
| | U Stenlund | 3 | 6 | 3 | | A Krickstein | 2 | 1 | | | | | | | | | | |
| | | | | | 2 | B Becker | 6 | 6 | | | | | | | | | | |