| 1990 PBA Third Conference | |
|---|---|
| Duration | September 30 - December 20, 1990 |
| TV partner(s) | Vintage Sports (PTV) |
| Finals | |
| Champions | Purefoods Hotdogs |
| Runners-up | Alaska Air Force |
| Awards | |
| Best Import | Bobby Parks (Formula Shell Zoom Masters) |
| PBA Third Conference chronology | |
| PBA conference chronology | |
The 1990 Philippine Basketball Association (PBA) Third Conference was the third and last conference of the 1990 PBA season. It started on September 30 and ended on December 20, 1990. The tournament is a two-import format, which requires each team to have two American reinforcements.
The following format will be observed for the duration of the conference:
Group A: | Group B: |
| Pos | Team | W | L | PCT | GB | Qualification |
|---|---|---|---|---|---|---|
| 1 | Alaska Air Force | 8 | 2 | .800 | — | Semifinal round |
| 2 | Formula Shell Zoom Masters | 7 | 3 | .700 | 1 | |
| 3 | Presto Tivolis | 6 | 4 | .600 | 2 | |
| 4 | Purefoods Hotdogs | 6 | 4 | .600 | 2 | |
| 5 | Sarsi Sizzlers | 5 | 5 | .500 | 3 | |
| 6 | San Miguel Beermen | 4 | 6 | .400 | 4 | |
| 7 | Añejo Rum 65ers | 4 | 6 | .400 | 4 | |
| 8 | Pepsi Hotshots | 0 | 10 | .000 | 8 |
|
|
Three teams finished tied for second. The three teams were ranked via head-to-head quotient, with the best performing team drawing a bye to the second round.