Kyne is also known as the founder of Bay Meadows Racecourse and he was largely responsible for the passage of the 1933 law which legalized pari-mutuel wagering in California.

Greyhound races were held at the track in 1956 only,[7] from August[8] until October, after the Multnomah Kennel Club (MKC) was evicted from Civic Stadium by the impending relocation of the Portland Beavers baseball team from Vaughn Street Park.

[9] The following year, MKC moved its races to a newly built track in Wood Village, named Fairview Park.

[10] In the 1960's, Bill Wineberg offered Rick Stroud, a fixture in the horse-racing world, his first official job in racing at Portland Meadows.

[citation needed] Present Value, a horse ridden by Hall of Fame jockey William Shoemaker, won the race.

[citation needed] Bob Dylan performed a concert at Portland Meadows on June 16, 2000 as part of his "Never Ending Tour".

Since dropping Sunday racing and adding Monday matinees, there's been an increase of over 100 new simulcast outlets taking the Portland Meadows signal.

[6] In 2003, with the inception of Monday afternoon racing, it was on December 22, Portland Meadows boasted a handle in excess of half a million dollars for the first time in over 10 years.

On March 6, 2007, Joe Crispin breaks Gary Stevens 25-year-old record for wins in a single season when he boots home his 127th winner of the year aboard Lady Boswell.

Portland Meadows presented a check for $10,265 to the Oregon National Guard Emergency Relief Fund on behalf of the People's Horse for 2010 Maria Margarita, who earned that amount with 3 victories and 8 in the money finishes.

The Stronach Group acquired all of MI Developments racing and gaming assets and assumed ownership of Portland Meadows on July 3, 2011.