| Abbreviation | Definition |
|---|---|
| PASB | Progressive Action Short Brace |
| PBR | Professional Barrel Racer |
| PBR | Pure Breed Racing |
| PBRA | Progressive Barrel Racing Association |
| PCC | Peer Contraceptive Counselors |
| PDRA | Professional Drag Racers Association |
| PDRF | Philippine Drag Racing Familysport |
| PEARL | Programmable Electronically Activated Race Line |
| PERLA | Project on Ethnicity and Race in Latin America |
| PERM | Performance Engineering Racing Manufacturing |
| PFR | Pension Fund Racing |
| PFRL | Pure Fantasy Racing League |
| PGR | Power Ground Racing |
| PGR | Project Gotham Racing |
| PGTT | partitioning gas tracer technique |
| PGTT | partitioning gas tracer test |
| PHILRACOM | Philippine Racing Commission |
| PHR | Power House Racing |
| PHR | PowerHouse Racing, Inc. |
| PHRF | Performance Handicap Racing Fleet |