[3] First played as the Portland Open, the revived 1959 event played as the Portland Centennial Open Invitational, in honor of Oregon's centennial of statehood.

[8] The club also hosted the Ryder Cup in 1947; the U.S. team was captained by Hogan and won 11–1.

[9][10] The tournament was dominated by three-time winners Billy Casper (1959–61)[11] and Jack Nicklaus (1962, 1964–65).

[12][13] Nicklaus' $3,500 win during his rookie season in 1962 concluded three weeks of victories;[14] he took the massive winner's share of $50,000 in the exhibition World Series of Golf in Ohio,[15][16] and then won his second tour title at the Seattle Open Invitational, which paid $4,300.

[19] It stood as the tour's 72-hole record for fewest putts for over a decade, until Bob Menne had only 99 at the Tournament Players Championship in 1977,[20] but tied for 47th.