# 1973 U.S. Pro Tennis Championships – Singles

The 1973 U.S. Pro Tennis Championships – Singles was an event of the 1973 U.S. Pro Tennis Championships tennis tournament and was played on outdoor hard courts at the Longwood Cricket Club in Chestnut Hill, Massachusetts in the United States between July 16 and July 23, 1973. The draw comprised 32 players and two of them were seeded. Bob Lutz was the defending U.S. Pro Tennis Championships champion but withdrew from his first-round match against Brian Gottfried. Jimmy Connors won the title by defeating second-seeded Arthur Ashe 6–3, 4–6, 6–4, 3–6, 6–2 in the final.

## Seeds

* Stan Smith (first round)
* Arthur Ashe (final)

## 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 | Final | Final |
| | Jimmy Connors | 6 | 6 | | | | | | | |
| | Cliff Richey | 0 | 2 | | | | | | | |
| | Cliff Richey | 0 | 2 | | Jimmy Connors | 6 | 4 | 6 | 3 | 6 |
| | | | | 2 | Arthur Ashe | 3 | 6 | 4 | 6 | 2 |
| | Clark Graebner | 3 | 5 | 2 | Arthur Ashe | 3 | 6 | 4 | 6 | 2 |
| 2 | Arthur Ashe | 6 | 7 | | | | | | | |

### Top half

| First Round | First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals |
| 1 | Stan Smith | 3 | 3 | | | | | | | | | | | | |
| | Jimmy Connors | 6 | 6 | | Jimmy Connors | 6 | 2 | 6 | | | | | | | |
| | Jaime Fillol | 6 | 6$^3$ | 5 | Ray Moore | 1 | 6 | 3 | | | | | | | |
| | Ray Moore | 2 | 7$^7$ | 7 | | | | | Jimmy Connors | 6 | 6 | | | | |
| | Dick Stockton | 7$^7$ | 6 | | | | | | Dick Stockton | 4 | 4 | | | | |
| | Dick Crealy | 6$^5$ | 1 | | Dick Stockton | 7$^7$ | 6 | | | | | | | | |
| | Bob Carmichael | 4 | 2 | | Nikola Pilić | 6$^5$ | 3 | | | | | | | | |
| | Nikola Pilić | 6 | 6 | | | | | | | | | | Jimmy Connors | 6 | 6 |
| | Marty Riessen | 6 | 7 | | | | | | | | | | Cliff Richey | 0 | 2 |
| | Ismail El Shafei | 1 | 5 | | Marty Riessen | 6 | 7 | | | | | | | | |
| | Gerald Battrick | 7$^8$ | 4 | 1 | Paul Gerken | 4 | 5 | | | | | | | | |
| | Paul Gerken | 6$^6$ | 6 | 6 | | | | | Marty Riessen | 4 | 6 | 6 | | | |
| | Cliff Richey | 7$^7$ | 6 | | | | | | Cliff Richey | 6 | 1 | 7 | | | |
| | Haroon Rahim | 6$^2$ | 1 | | Cliff Richey | 6 | 6 | | | | | | | | |
| | Doug Crawford | 3 | 6$^3$ | | Andrew Pattison | 2 | 4 | | | | | | | | |
| | Andrew Pattison | 6 | 7$^7$ | | | | | | | | | | | | |

### Bottom half

| First Round | First Round | First Round | First Round | First Round | Second Round | Second Round | Second Round | Second Round | Second Round | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Quarterfinals | Semifinals | Semifinals | Semifinals | Semifinals |
| | Clark Graebner | 6 | 6 | | | | | | | | | | | | | | | |
| | Paul Sullivan | 1 | 2 | | | Clark Graebner | 6 | 6 | | | | | | | | | | |
| | Erik van Dillen | 2 | 6 | 6 | | Erik van Dillen | 4 | 1 | | | | | | | | | | |
| | Tom Gorman | 6 | 4 | 1 | | | | | | | Clark Graebner | 7 | 6 | | | | | |
| | Brian Gottfried | w/o | | | | | | | | | John Alexander | 5 | 4 | | | | | |
| | Bob Lutz | | | | | Brian Gottfried | 6$^3$ | 6 | 4 | | | | | | | | | |
| | Jeff Borowiak | 4 | 7$^7$ | 4 | | John Alexander | 7$^7$ | 3 | 6 | | | | | | | | | |
| | John Alexander | 6 | 6$^5$ | 6 | | | | | | | | | | | | Clark Graebner | 3 | 5 |
| | Graham Stilwell | 6 | 6$^8$ | 6 | | | | | | | | | | | 2 | Arthur Ashe | 6 | 7 |
| | Mike Estep | 3 | 7$^{10}$ | 2 | | Graham Stilwell | 4 | 4 | | | | | | | | | | |
| | Eddie Dibbs | 2 | 4 | | | Roscoe Tanner | 6 | 6 | | | | | | | | | | |
| | Roscoe Tanner | 6 | 6 | | | | | | | | Roscoe Tanner | 6 | 4 | 5 | | | | |
| | Charlie Pasarell | 6 | 6 | | | | | | | 2 | Arthur Ashe | 4 | 6 | 7 | | | | |
| | Phil Dent | 4 | 4 | | | Charlie Pasarell | 3 | 1 | | | | | | | | | | |
| | Harold Solomon | 6$^4$ | 6 | 3 | 2 | Arthur Ashe | 6 | 6 | | | | | | | | | | |
| 2 | Arthur Ashe | 7$^7$ | 2 | 6 | | | | | | | | | | | | | | |