1968 Philadelphia International Indoor Championships – Singles
| Singles | |
|---|---|
| 1968 Philadelphia International Indoor Championships | |
| Champion | .svg.png){kind=small} Manuel Santana |
| Runner-up |  Jan Leschly |
| Score | 8–6, 6–3 |
| Draw | 12 |
| Seeds | 4 |
The event was being held for the first time during the open-era.
Manuel Santana won the title, beating Jan Leschly 8–6, 6–3 in the final.
Seeds
Charlie Pasarell (semifinals)- Manuel Santana (champion)
- Arthur Ashe (semifinals)
- Jan Leschly (final)
Draw
Key
- Q = Qualifier
- WC = Wild card
- LL = Lucky loser
- Alt = Alternate
- ITF = ITF entry
- PR = Protected ranking
- SR = Special ranking
- SE = Special exempt
- JE = Junior exempt
- JR = Junior Accelerator Programme entrant
- CO = College Accelerator Programme entrant
- NG = Next Gen Accelerator Program entrant
- w/o = Walkover
- r = Retired
- d = Defaulted
Singles draw
| First round | Quarterfinals | Semifinals | Final | ||||||||||||||||||||||||
| 1 | Charlie Pasarell
| 4 | 16 | 6 | |||||||||||||||||||||||
| Manuel Orantes
| .svg.png){kind=small} Thomaz Koch
| 6 | 14 | 2 | |||||||||||||||||||||||
| Thomaz Koch
| w/o | 1 | Charlie Pasarell
| 2 | 5 | ||||||||||||||||||||||
| Cliff Richey
| 7 | 7 | 6 | 4 | Jan Leschly
| 6 | 7 | ||||||||||||||||||||
 Rafael Osuna
| 9 | 5 | 4 | Cliff Richey
| 3 | 4 | |||||||||||||||||||||
| 4 | Jan Leschly
| 6 | 6 | ||||||||||||||||||||||||
| 4 | Jan Leschly
| 6 | 3 | ||||||||||||||||||||||||
| 2 | Manuel Santana
| 8 | 6 | ||||||||||||||||||||||||
 Tom Okker
| 5 | 9 | |||||||||||||||||||||||||
| 3 | Arthur Ashe
| 6 | 6 | 3 | Arthur Ashe
| 7 | 11 | ||||||||||||||||||||
| Q | Dick Stockton
| 2 | 2 | 3 | Arthur Ashe
| 1 | 3 | ||||||||||||||||||||
| Jeff Borowiak
| 7 | 4 | 2 | Manuel Santana
| 6 | 6 | |||||||||||||||||||||
| Torben Ulrich
| 9 | 6 | Torben Ulrich
| 1 | 6 | 3 | |||||||||||||||||||||
| 2 | Manuel Santana
| 6 | 3 | 6 | |||||||||||||||||||||||