1975 U.S. Open Winner and Scores
The 1975 U.S. Open was the 75th time the tournament was played. It ended with an 18-hole playoff.
Winner: Lou Graham, 287
Where it was played: Medinah Country Club in Medinah, Illinois
Tournament dates: June 19-23, 1975
Leader after first round: Pat Fitzsimons and Tom Watson, 67
Leader after second round: Tom Watson, 135
Leader after third round: Frank Beard, 210
Notable Notes: Lou Graham defeated John Mahaffey in an 18-hole playoff for the trophy. The pair tied after 72 holes at 3-over 287. In the playoff, Graham took a 3-stroke lead with a birdie on the 12th hole and Mahaffey was never closer than two strokes after that. Their final scores were 71 for Graham and 73 for Mahaffey.
Final Scores
| Lou Graham | 74-72-68-73—287 |
| John Mahaffey | 73-71-72-71—287 |
| Hale Irwin | 74-71-73-70—288 |
| Bob Murphy | 74-73-72-69—288 |
| Ben Crenshaw | 70-68-76-74—288 |
| Frank Beard | 74-69-67-78—288 |
| Peter Oosterhuis | 69-73-72-75—289 |
| Jack Nicklaus | 72-70-75-72—289 |
| Arnold Palmer | 69-75-73-73—290 |
| Pat Fitzsimons | 67-73-73-77—290 |
| Tom Watson | 67-68-78-77—290 |
| Andy North | 75-72-72-72—291 |
| Raymond Floyd | 76-71-72-72—291 |
| Jim Wiechers | 68-73-76-75—292 |
| Rik Massengale | 71-74-71-76—292 |
| Eddie Pearce | 75-71-70-76—292 |
| Joe Inman | 72-72-71-77—292 |
| Gary Groh | 73-74-73-73—293 |
| Terry Dill | 72-69-77-75—293 |
| a-Jay Haas | 74-69-72-78—293 |
| Hubert Green | 74-73-68-78—293 |
| Grier Jones | 69-73-79-72—293 |
| a-Jerry Pate | 79-70-72-72—293 |
| Kermit Zarley | 73-71-75-75—294 |
| Forrest Fezler | 73-75-71-75—294 |
| Bud Allin | 76-70-73-75—294 |
| Dale Douglass | 71-77-72-74—294 |
| Miller Barber | 74-71-71-78—294 |
| Lee Trevino | 72-75-73-75—295 |
| Don January | 75-71-74-75—295 |
| Tom Weiskopf | 75-71-74-75—295 |
| Steve Melnyk | 75-73-74-73—295 |
| Ed Sneed | 75-74-73-73—295 |
| David Graham | 71-76-74-74—295 |
| Nate Starks | 75-72-76-72—295 |
| Jerry Heard | 77-67-78-73—295 |
| Tommy Aaron | 73-71-82-69—295 |
| John Schlee | 75-73-72-76—296 |
| Johnny Miller | 75-72-76-73—296 |
| Lanny Wadkins | 69-77-77-73—296 |
| Julius Boros | 72-77-72-75—296 |
| Al Geiberger | 72-72-74-78—296 |
| Dave Stockton | 73-73-77-74—297 |
| Gary Player | 75-73-72-77—297 |
| Doug Sanders | 75-73-76-74—298 |
| Gibby Gilbert | 71-76-74-77—298 |
| Dick Rhyan | 74-70-77-77—298 |
| Bob E. Smith | 78-71-72-77—298 |
| J.C. Snead | 76-73-75-75—299 |
| Bob Gilder | 76-71-77-75—299 |
| Beau Baugh | 77-72-73-77—299 |
| Bob Stanton | 77-72-78-72—299 |
| a-Lance Ten Broeck | 71-74-79-75—299 |
| Gary Robinson | 72-72-76-79—299 |
| Gene Littler | 74-73-73-79—299 |
| Wally Armstrong | 73-74-77-76—300 |
| Lynn Janson | 71-73-78-78—300 |
| Bob Panasik | 76-71-76-78—301 |
| Frank Conner | 72-72-76-81—301 |
| Marty Fleckman | 71-77-79-76—303 |
| Bill Rogers | 75-73-81-75—304 |
| Jack Ewing | 76-73-77-79—305 |
| Jack Connelly | 75-74-78-79—306 |
| Bob Goalby | 72-74-80-80—306 |
| Mike Reasor | 72-74-82-80—308 |
| Carlton White | 74-75-76-86—311 |
| Stan Altgelt | 76-72-87-77—312 |
