# 1971 Philadelphia International Indoor Open Championships – Men's singles

The 1971 Philadelphia International Indoor Open Championships – Men's singles was an event of the 1971 Philadelphia International Indoor Open Championships, tennis tournament played at the Spectrum in Philadelphia, Pennsylvania in the United States from February 9 through February 14, 1971. The draw comprised 32 players and 12 of them were seeded. First-seeded Rod Laver was the defending singles champion. Third-seeded John Newcombe won the title, defeating Laver 7–6$^{(7–5)}$, 7–6$^{(7–1)}$, 6–4 in the final.

## Seeds

* Rod Laver (final)
* Ken Rosewall (first round)
* John Newcombe (champion)
* Tony Roche (second round)
* Arthur Ashe (semifinals)
* Roy Emerson (quarterfinals)
* Tom Okker (quarterfinals)
* Andrés Gimeno (second round)
* Roger Taylor (second round)
* Dennis Ralston (quarterfinals)
* Nikola Pilić (second round, retired)
* Fred Stolle (first 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 | Semifinals | Final | Final | Final | Final | Final |
| 1 | Rod Laver | 6 | 7$^7$ | 3 | 6 | | | | | | |
| 5 | Arthur Ashe | 3 | 6$^1$ | 6 | 1 | | | | | | |
| 5 | Arthur Ashe | 3 | 6$^1$ | 6 | 1 | | 1 | Rod Laver | 6$^5$ | 6$^1$ | 4 |
| | | | | | | | 3 | John Newcombe | 7$^7$ | 7$^7$ | 6 |
| 3 | John Newcombe | 3 | 2 | 6 | 6 | 7$^7$ | 3 | John Newcombe | 7$^7$ | 7$^7$ | 6 |
| | Cliff Drysdale | 6 | 6 | 1 | 4 | 6$^4$ | | | | | |

### Top half

| 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 | Semifinals | Semifinals |
| 1 | R Laver | 6 | 6 | | | | | | | | | | | | | | | | |
| | R Ruffels | 0 | 4 | 1 | R Laver | 6 | 6 | | | | | | | | | | | | |
| | J Alexander | 6 | 7$^{11}$ | | J Alexander | 4 | 2 | | | | | | | | | | | | |
| | M Riessen | 4 | 6$^9$ | | | | | | 1 | R Laver | 6 | 6 | | | | | | | |
| | M Cox | 6$^5$ | 6$^3$ | | | | | | | B Fairlie | 3 | 2 | | | | | | | |
| | B Fairlie | 7$^7$ | 7$^7$ | | B Fairlie | 5 | 7$^7$ | 7$^8$ | | | | | | | | | | | |
| | R Maud | 2 | 0 | 8 | A Gimeno | 7 | 6$^2$ | 6$^6$ | | | | | | | | | | | |
| 8 | A Gimeno | 6 | 6 | | | | | | | | | | | 1 | R Laver | 6 | 7$^7$ | 3 | 6 |
| 5 | A Ashe | 6 | 6 | | | | | | | | | | | 5 | A Ashe | 3 | 6$^1$ | 6 | 1 |
| | C Pasarell | 4 | 2 | 5 | A Ashe | 6$^{10}$ | 7 | | | | | | | | | | | | |
| | T Ulrich | 3 | 4 | 11 | N Pilić | 7$^{12}$ | 5 | r | | | | | | | | | | | |
| 11 | N Pilić | 6 | 6 | | | | | | 5 | A Ashe | 7 | 4 | 6 | | | | | | |
| 10 | D Ralston | 6 | 6 | | | | | | 10 | D Ralston | 5 | 6 | 1 | | | | | | |
| | G Stilwell | 1 | 4 | 10 | D Ralston | 7 | 6 | | | | | | | | | | | | |
| | P Dent | 6$^2$ | 3 | 4 | T Roche | 5 | 4 | | | | | | | | | | | | |
| 4 | T Roche | 7$^7$ | 6 | | | | | | | | | | | | | | | | |

### 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 | Semifinals | Semifinals | Semifinals |
| 3 | J Newcombe | 6 | 6 | | | | | | | | | | | | | | | | | | |
| | R Barth | 2 | 3 | | 3 | J Newcombe | 6 | 6 | | | | | | | | | | | | | |
| | B Bowrey | 5 | 2 | | 9 | R Taylor | 1 | 4 | | | | | | | | | | | | | |
| 9 | R Taylor | 7 | 6 | | | | | | | 3 | J Newcombe | 4 | 6 | 7$^7$ | | | | | | | |
| 12 | F Stolle | 5 | 2 | | | | | | | 7 | T Okker | 6 | 4 | 6$^2$ | | | | | | | |
| | R Lutz | 7 | 6 | | | R Lutz | 2 | 3 | | | | | | | | | | | | | |
| | F McMillan | 1 | 3 | | 7 | T Okker | 6 | 6 | | | | | | | | | | | | | |
| 7 | T Okker | 6 | 6 | | | | | | | | | | | | 3 | J Newcombe | 3 | 2 | 6 | 6 | 7$^7$ |
| 6 | R Emerson | 6 | 4 | 6 | | | | | | | | | | | | C Drysdale | 6 | 6 | 1 | 4 | 6$^4$ |
| | I El Shafei | 4 | 6 | 2 | 6 | R Emerson | 6 | 6$^5$ | 6 | | | | | | | | | | | | |
| | D Crealy | 3 | 4 | | | B Carmichael | 4 | 7$^7$ | 3 | | | | | | | | | | | | |
| | B Carmichael | 6 | 6 | | | | | | | 6 | R Emerson | 5 | 6 | 1 | | | | | | | |
| | C Drysdale | 6 | 6 | | | | | | | | C Drysdale | 7 | 4 | 6 | | | | | | | |
| | A Stone | 2 | 1 | | | C Drysdale | 7 | 7 | | | | | | | | | | | | | |
| | O Davidson | 6 | 6 | | | O Davidson | 5 | 5 | | | | | | | | | | | | | |
| 2 | K Rosewall | 3 | 4 | | | | | | | | | | | | | | | | | | |