https://www.jfw-tw.com/videos/usga-ball-mark-repair-watch/https://i.ytimg.com/vi/myOTf1wuZoA/hqdefault.jpgFore The Golfer: How to Repair Ball Marks觀看 USGA 2013 年上傳的球痕修補教學，再用三個問題確認工具、草皮與修復結果。原片日期保留，不把舊教學包裝成即時新聞。https://www.youtube.com/embed/myOTf1wuZoA2013-10-04T10:32:30-07:00https://www.jfw-tw.com/videos/usga-provisional-ball-watch/https://i.ytimg.com/vi/HEwNzgC9ge4/hqdefault.jpgRules of Golf Explained (2023): Ball Lost or Out of Bounds and Provisional BallUSGA 原頻道解說遺失球、出界與暫定球。帶著宣布時點、原球狀態與下一步處理三個問題觀看，另附中文入門指南。https://www.youtube.com/embed/HEwNzgC9ge42023-01-01T05:00:14-08:00