The British Open has been decided in a playoff 21 times before, most recently in 2015. The Open playoff format is typically a four-hole aggregate, but Royal Portrush uses a three-hole playoff format.
The 2025 Amgen Irish Open format remains unchanged this year, with the DP World Tour event played at The K Club in Straffan, Ireland. The 2025 Amgen Irish Open field is 156 players. The Amgen Irish ...