The Quadrilateral
Geoff ShackelfordA year-round newsletter from one of golf’s last independent voices devoted to all things Grand Slam and the best Cup events.
| Platform |  | Pricing | Freemium | Publishes | Daily |
|---|---|---|---|---|---|
| Issues | 993 | Subscribers | Read | quadrilateral.substack.com |
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How this newsletter ranks in the official Substack charts.
| #30 | |
| #18 |
Latest Issues
Recent posts by this newsletter. Browse the email archive.
Major(s) News & Notes, April 23, 2026
* Days to the Chevron Championship first round: 0
Weekend: Fitzpatrick Wins Again
Former RBC Heritage champion defeats Scheffler and a partisan crowd. Plus, Green wins the JM Eagle in a playoff. And savoring LIV CEO O'Neil's wild claims as the Saudis pull back funding.
(Point) Missers, 2026 Masters
LIV, Bryson, Sergio, Code of Conduct violators, PGA Tour profit seekers, crackdowns on patrons, a Par 3 alternative, ESPN, Merch stress, and the new candy bar.
Cutmakers, 2026 Masters
CBS's coverage, app issues, the course setup and changes, amateurs, Patron style, and ice cream sandwiches.
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Authors
The writers behind this newsletter.
Author, writer, blogger, podcaster, golf architect, television analyst and now newsletter publisher!
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