Share this postTrack golf's major championships (and the Ryder Cup too)quadrilateral.substack.comCopy linkFacebookEmailNotesOtherTrack golf's major championships (and the Ryder Cup too)Geoff ShackelfordNov 4, 2020∙ Paid6Share this postTrack golf's major championships (and the Ryder Cup too)quadrilateral.substack.comCopy linkFacebookEmailNotesOtherShareWelcome to The Quadrilateral by me, Geoff Shackelford. Author, blogger, podcaster, golf architect and now newsletter publisher.The Quadrilateral arrives (at least) every Thursday year-round deliverin…This post is for paid subscribersSubscribeAlready a paid subscriber? Sign in