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The Quadrilateral

Geoff Shackelford
Thousands of paid subscribers

A year-round newsletter from one of golf’s last independent voices devoted to all things Grand Slam and the best Cup events.

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Substack
PricingFreemiumPublishesDaily
Issues1093Founded6 years agoLast Issue2 days ago
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Latest Issues

Major(s) News & Notes, October 29, 2026

Fifa Laopakdee during the first round of the 2026 Asia-Pacific Amateur Championship at Te Arai Links, (AAC)

  • 161: Days to The Masters Honorary Starters Ceremony

Round one of the Asia-Pacific Amateur in New Zealand was underway as th...

2 days ago
17
25

Weekend: Catlin Is Masters And Open Bound

The American journeyman emerges from a tight leaderboard in Hong Kong for his sixth national Open title. Plus, the LIV boondoggle turns entertaining thanks to twisted domain names and grift galore.

John Catlin arrived in Hong Kong ranked 4...

6 days ago
21
28
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Major(s) News & Notes October 22, 2026

Masters and Open invites are on the line in Hong Kong. Plus, might Royal County Down be making changes to lure an Open, McMahon speaks out on Ryder Cup firing, Quotable, This, That and Reads.

168: Days to The Masters Honorary Starters Cere...

9 days ago
14
21
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Weekend: Hosono Books Masters, Open Trips

Plus, Chacarra keeps rolling in Delhi, Kisner questions McIlroy’s integrity, LIV’s hypocrisy, and Trump unveils plan for “major championship” venue as East Potomac situation worsens.

This is one of those Mondays where the pleasure of servi...

13 days ago
17
25
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Major(s) News & Notes October 15, 2026

Keegan Bradley’s Captaincy legacy worsens. Plus, Quotables, DCP finalists announced, a bunch of This and That, plus Reads.

175: Days to The Masters Honorary Starters Ceremony

17 days ago
26
45
Paid

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Authors

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  • Geoff Shackelford

    Author, writer, blogger, podcaster, golf architect, television analyst and now newsletter publisher!

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