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:
| Years led | Span of years led | Player | Titles won at point of lead | Total Career titles | Tournament at which lead began |
| --- | --- | --- | --- | --- | --- |
| 1877–1880 | 4.0 | Spencer Gore | 1.0 | 1.0 | Wimbledon |
| 1880–1883 | 4.0 | John Hartley | 2.0 | 2.0 | Wimbledon |
| 1883–1887 | 5.0 | William Renshaw | 3.0 | 7.0 | Wimbledon |
| 1887–1925 | 39.0 | Richard Sears | 7.0 | 7.0 | U.S. Championships |
| 1889–1925 | 37.0 | William Renshaw | 7.0 | 7.0 | Wimbledon |
| 1911–1925 | 15.0 | William Larned | 7.0 | 7.0 | U.S. Championships |
| 1925–1967 | 43.0 | Bill Tilden | 8.0 | 10.0 | U.S. Championships |
| 1967–2000 | 34.0 | Roy Emerson | 11.0 | 12.0 | Australian Championships |
| 2000–2009 | 10.0 | Pete Sampras | 13.0 | 14.0 | Wimbledon |
Question:
At what tournament did pete sampras begin his lead?
Answer:
Wimbledon