# 1980 U.S. Pro Indoor – Singles

Jimmy Connors was the defending champion.
Connors successfully defended his title, defeating John McEnroe, 6–3, 2–6, 6–3, 3–6, 6–4 in the final.

## Seeds

* Jimmy Connors (champion)
* John McEnroe (final)
* Vitas Gerulaitis (second round)
* N/A
* Harold Solomon (quarterfinals)
* José Higueras (third round)
* Gene Mayer (semifinals)
* Peter Fleming (second round)
* Wojtek Fibak (quarterfinals)
* José Luis Clerc (quarterfinals)
* Brian Gottfried (third round)
* N/A
* Stan Smith (third round)
* Victor Amaya (second round)
* Yannick Noah (first round)
* Tim Gullikson (third 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 | Semifinals | Semifinals | Final | Final | Final | Final | Final | Final | Final |
| 1 | Jimmy Connors | 6 | 6 | 6 | | | | | | | | |
| 7 | Gene Mayer | 4 | 0 | 2 | | | | | | | | |
| 7 | Gene Mayer | 4 | 0 | 2 | | 1 | Jimmy Connors | 6 | 2 | 6 | 3 | 6 |
| | | | | | | 2 | John McEnroe | 3 | 6 | 3 | 6 | 4 |
| | John Sadri | 6 | 6 | 1 | 3 | 2 | John McEnroe | 3 | 6 | 3 | 6 | 4 |
| 2 | John McEnroe | 7 | 4 | 6 | 6 | | | | | | | |

### Top half
#### Section 1

| 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 |
| | | | | | 1 | J Connors | 7 | 6 | | | | | | | | | | |
| | To Gullikson | 7 | 6 | | | To Gullikson | 5 | 4 | | | | | | | | | | |
| | D Bedel | 6 | 2 | | | | | | | 1 | J Connors | 6 | 6 | | | | | |
| | B Manson | 6 | 6 | 0 | | | | | | | R Ramírez | 2 | 2 | | | | | |
| | R Ramírez | 4 | 7 | 6 | | R Ramírez | 6 | 6 | | | | | | | | | | |
| | | | | | 14 | V Amaya | 3 | 2 | | | | | | | | | | |
| | | | | | | | | | | | | | | | 1 | J Connors | 6 | 6 |
| | | | | | | | | | | | | | | | 9 | W Fibak | 2 | 2 |
| | | | | | 9 | W Fibak | 7 | 7 | | | | | | | | | | |
| Q | J Lapidus | 4 | 2 | | | G Masters | 6 | 5 | | | | | | | | | | |
| | G Masters | 6 | 6 | | | | | | | 9 | W Fibak | 3 | 6 | 6 | | | | |
| | A Pattison | 5 | 6 | 6 | | | | | | 6 | J Higueras | 6 | 0 | 3 | | | | |
| | F Taygan | 7 | 4 | 1 | | A Pattison | 4 | 6 | 6 | | | | | | | | | |
| | | | | | 6 | J Higueras | 6 | 2 | 7 | | | | | | | | | |

#### Section 2

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| | E van Dillen | 2 | 2 | | | | | | | | | | | | | | |
| | J Kriek | 6 | 6 | | | J Kriek | 6 | 6 | | | | | | | | | |
| | | | | | | C Kachel | 1 | 2 | | | | | | | | | |
| | | | | | | | | | | J Kriek | 4 | 2 | | | | | |
| | | | | | | | | | | B Scanlon | 6 | 6 | | | | | |
| | | | | | | C Lewis | 1 | 1 | | | | | | | | | |
| | B Scanlon | 5 | 7 | 7 | | B Scanlon | 6 | 6 | | | | | | | | | |
| 15 | Y Noah | 7 | 6 | 5 | | | | | | | | | | B Scanlon | 2 | 7 | 6 |
| | | | | | | | | | | | | | 7 | G Mayer | 6 | 5 | 7 |
| | | | | | | G Moretton | 3 | 3 | | | | | | | | | |
| | H Günthardt | 0 | 6 | 6 | | H Günthardt | 6 | 6 | | | | | | | | | |
| | I Năstase | 6 | 4 | 1 | | | | | | H Günthardt | 3 | 3 | | | | | |
| | | | | | | | | | 7 | G Mayer | 6 | 6 | | | | | |
| | | | | | | R Meyer | 6 | 1 | | | | | | | | | |
| | V Van Patten | 0 | 2 | | 7 | G Mayer | 7 | 6 | | | | | | | | | |
| 7 | G Mayer | 6 | 6 | | | | | | | | | | | | | | |

### Bottom half
#### Section 3

| First round | First round | First round | First round | First round | Second round | Second round | Second round | Second round | Third round | Third round | Third round | Third round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals |
| 5 | H Solomon | 6 | 6 | | | | | | | | | | | | | |
| | B Kleege | 4 | 2 | | 5 | H Solomon | 6 | 7 | | | | | | | | |
| | | | | | Q | G Hardie | 4 | 6 | | | | | | | | |
| | | | | | | | | | 5 | H Solomon | 6 | 6 | | | | |
| | V Winitsky | 3 | 2 | | | | | | 11 | B Gottfried | 2 | 4 | | | | |
| | M Edmondson | 6 | 6 | | | M Edmondson | 3 | 0 | | | | | | | | |
| | | | | | 11 | B Gottfried | 6 | 6 | | | | | | | | |
| | | | | | | | | | | | | | 5 | H Solomon | 2 | 5 |
| | | | | | | | | | | | | | | J Sadri | 6 | 7 |
| | | | | | 13 | S Smith | 7 | 6 | | | | | | | | |
| | H Pfister | 6 | 6 | | | H Pfister | 6 | 1 | | | | | | | | |
| | M Riessen | 3 | 4 | | | | | | 13 | S Smith | 6 | 6 | | | | |
| | B Taróczy | 6 | 6 | 3 | | | | | | J Sadri | 7 | 7 | | | | |
| | J Sadri | 7 | 4 | 6 | | J Sadri | 6 | 6 | | | | | | | | |
| | | | | | 3 | V Gerulaitis | 4 | 4 | | | | | | | | |

#### Section 4

| 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 | Quarterfinals |
| | | | | 8 | P Fleming | 4 | 3 | | | | | | | | | | | |
| | C Owens | 6 | 2 | | B Martin | 6 | 6 | | | | | | | | | | | |
| | B Martin | 7 | 6 | | | | | | | B Martin | 6 | 3 | 3 | | | | | |
| | E Teltscher | 6 | 6 | | | | | | 10 | J L Clerc | 2 | 6 | 6 | | | | | |
| | T Wilkison | 1 | 3 | | E Teltscher | 6 | 2 | 2 | | | | | | | | | | |
| | | | | 10 | J L Clerc | 3 | 6 | 6 | | | | | | | | | | |
| | | | | | | | | | | | | | | 10 | J L Clerc | 2 | 6 | 1 |
| | | | | | | | | | | | | | | 2 | J McEnroe | 6 | 4 | 6 |
| | | | | 16 | Ti Gullikson | 7 | 6 | | | | | | | | | | | |
| | R Trogolo | 7 | 6 | | R Trogolo | 6 | 2 | | | | | | | | | | | |
| | T Moor | 6 | 2 | | | | | | 16 | Ti Gullikson | 4 | 2 | | | | | | |
| | | | | | | | | | 2 | J McEnroe | 6 | 6 | | | | | | |
| | | | | | B Mottram | 2 | 2 | | | | | | | | | | | |
| | B Teacher | 4 | 3 | 2 | J McEnroe | 6 | 6 | | | | | | | | | | | |
| 2 | J McEnroe | 6 | 6 | | | | | | | | | | | | | | | |