David Laurence Frost is a South African professional golfer who was ranked in the top 10 of the Official World Golf Ranking in the late 1980s and early 1990s. Frost has 29 professional tournament wins to his name, spread across four continents, including the World Series of Golf, South African Open, Nedbank Million Dollar Challenge and Canadian Open. He has also been on the winning Alfred Dunhill Cup team and played in the Presidents Cup.

The Canadian Open is a professional golf tournament in Canada. It is co-organized by Golf Canada and the PGA Tour. It was first played 120 years ago in 1904, and has been held annually since then, except for during World War I, World War II and the COVID-19 pandemic. It is the third oldest continuously running tournament on the tour, after The Open Championship and the U.S. Open.