2015 British Open Winner and Scores
Winner: Zach Johnson, 273
Where it was played: The Old Course at St. Andrews, Scotland
Tournament dates: July 16-20, 2015
Leader after first round: Dustin Johnson, 65
Leader after second round: Dustin Johnson, 134
Leader after third round: Jason Day, Paul Dunne and Louis Oosthuizen, 204
Notable Notes: Two questions dominated at the start of the final round. Could amateur Paul Dunne become the first amateur champion at the Open since Bobby Jones? And could Jordan Spieth, already the 2015 Masters and 2015 U.S. Open champion, make it three majors wins a row? The answer to both was no. ... Spieth had a putt on the final hole to get into the playoff, but missed. ... Zach Johnson and Louis Oosthuizen both birdied the final hole to make the playoff, along with Marc Leishman. ... Johnson took the lead after the second hole of the 4-hole, aggregate playoff. He won it by one stroke, beating Oosthuizen 15 to 16. Leishman finished it at 18.
Final Scores
| Zach Johnson | 66-71-70-66—273 |
| Louis Oosthuizen | 67-70-67-69—273 |
| Marc Leishman | 70-73-64-66—273 |
| Jason Day | 66-71-67-70—274 |
| Jordan Spieth | 67-72-66-69—274 |
| Sergio Garcia | 70-69-68-70—277 |
| Justin Rose | 71-68-68-70—277 |
| Danny Willett | 66-69-72-70—277 |
| a-Jordan Niebrugge | 67-73-67-70—277 |
| Adam Scott | 70-67-70-71—278 |
| Brooks Koepka | 71-70-69-68—278 |
| Luke Donald | 68-70-73-68—279 |
| Anthony Wall | 70-71-68-70—279 |
| Martin Kaymer | 71-70-70-68—279 |
| Brendon Todd | 71-73-69-66—279 |
| a-Ollie Schniederjans | 70-72-70-67—279 |
| a-Ashley Chesters | 71-72-67-69—279 |
| Robert Streb | 66-71-70-73—280 |
| Hideki Matsuyama | 72-66-71-71—280 |
| Stewart Cink | 70-71-68-72—281 |
| Retief Goosen | 66-72-69-74—281 |
| Phil Mickelson | 70-72-70-69—281 |
| Padraig Harrington | 72-69-65-75—281 |
| Greg Owen | 68-73-71-69—281 |
| Marcus Fraser | 74-69-68-70—281 |
| James Morrison | 71-71-70-69—281 |
| Branden Grace | 69-72-73-67—281 |
| Russell Henley | 74-66-72-69—281 |
| Patrick Reed | 72-70-67-72—281 |
| a-Paul Dunne | 69-69-66-78-282 |
| Jim Furyk | 73-71-66-72—282 |
| Steven Bowditch | 70-69-69-74—282 |
| Jimmy Walker | 72-68-71-71—282 |
| Ryan Palmer | 71-71-67-73—282 |
| Matt Jones | 68-73-69-72—282 |
| Billy Horschel | 73-71-71-67—282 |
| Rickie Fowler | 72-71-66-73—282 |
| Anirban Lahiri | 69-70-71-72—282 |
| Andy Sullivan | 72-71-68-71—282 |
| Geoff Ogilvy | 71-68-72-72—283 |
| John Senden | 72-72-68-71—283 |
| Paul Lawrie | 66-70-74-73—283 |
| Henrik Stenson | 73-70-71-69—283 |
| Webb Simpson | 70-70-71-72—283 |
| Francesco Molinari | 72-71-73-67—283 |
| Marc Warren | 68-69-72-74—283 |
| Rafael Cabrera-Bello | 71-73-68-71—283 |
| Scott Arnold | 71-73-73-66—283 |
| David Duval | 72-72-67-73—284 |
| Jamie Donaldson | 72-71-71-70—284 |
| David Howell | 68-73-73-70—284 |
| Lee Westwood | 71-73-69-71—284 |
| Graeme McDowell | 72-72-70-70—284 |
| Hunter Mahan | 72-72-67-73—284 |
| Ryan Fox | 72-69-76-67—284 |
| Dustin Johnson | 65-69-75-75—284 |
| Eddie Pepperell | 72-70-66-76—284 |
| Greg Chalmers | 70-71-69-75—285 |
| Matt Kuchar | 71-73-70-71—285 |
| Jason Dufner | 73-71-67-74—285 |
| Kevin Na | 67-75-70-73—285 |
| Gary Woodland | 72-70-71-72—285 |
| Cameron Tringale | 71-71-73-70—285 |
| David Lipsky | 73-69-70-73—285 |
| Ernie Els | 71-73-69-73—286 |
| Thongchai Jaidee | 72-71-70-73—286 |
| a-Romain Langasque | 69-72-71-74—286 |
| Charl Schwartzel | 67-72-69-79—287 |
| Graham DeLaet | 71-73-68-75—287 |
| Ross Fisher | 71-73-72-71—287 |
| Bernd Wiesberger | 72-72-71-72—287 |
| Richie Ramsay | 72-71-70-74—287 |
| Harris English | 71-72-69-75—287 |
| Paul Casey | 70-71-75-72—288 |
| Brett Rumford | 71-71-71-75—288 |
| Ben Martin | 74-70-67-77—288 |
| David Lingmerth | 69-72-70-77—288 |
| Bernhard Langer | 74-70-73-72—289 |
| Mark O'Meara | 72-72-71-74—289 |
| Thomas Aiken | 75-69-72-74—290 |