Please read the following table in Markdown format and then answer the question according to the table. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| Year | Championship | 54 holes | Winning score | Margin | Runner-up |
| --- | --- | --- | --- | --- | --- |
| 1914.0 | U.S. Open | 2 shot lead | +2 (68-74-75-73=290) | 1 stroke | Chick Evans |
| 1919.0 | U.S. Open (2) | 5 shot deficit | +17 (78-73-75-75=301) | Playoff 1 | Mike Brady |
| 1921.0 | PGA Championship | n/a | 3 & 2 | n/a | Jim Barnes |
| 1922.0 | The Open Championship | 2 shot deficit | (76-73-79-72=300) | 1 stroke | Jim Barnes |
| 1924.0 | The Open Championship (2) | Tied for lead | (77-73-74-77=301) | 1 stroke | Ernest Whitcombe |
| 1924.0 | PGA Championship (2) | n/a | 2 up | n/a | Jim Barnes |
| 1925.0 | PGA Championship (3) | n/a | 6 & 5 | n/a | William Mehlhorn |
| 1926.0 | PGA Championship (4) | n/a | 5 & 3 | n/a | Leo Diegel |
| 1927.0 | PGA Championship (5) | n/a | 1 up | n/a | Joe Turnesa |
| 1928.0 | The Open Championship (3) | 1 shot lead | (75-73-72-72=292) | 2 strokes | Gene Sarazen |
Question:
WHAT WAS THE YEAR WHEN THE RUNNER-UP WAS WILLIAM MEHLHORN?
Answer:
1925.0