| Opened | September 14, 1946 |
| Last Race Date | Still in Operation |
| Racing Type | Thoroughbred, Quarter Horse |
| Abbreviation | PM |
| Purse Value Index | 7 |
| Signature Race | Portland Meadows Mile |
- 09/14/1946 Opens for racing under the lights.
- 05/30/1948 The Vanport flood closes the track for 1948 after only 13 cards.
- 04/25/1970 An early morning fire razes the grandstand.
- 02/06/1971 Track re-opens, 12,635 attend, setting all time attendance record.
- 06/08/1972 Veteran jockey Dan Castle, dies from injuries suffered in a spill today.
- 03/31/1976 Track payroll is robbed.
- 01/01/2001 Magna Entertainment (MEC) acquires Portland Meadows.
- 03/06/2007 Joe Crispen breaks Gary Stevens single season win record.
- 12/18/2007 All source handle record is set when $1,114,528 is bet.