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:
| Tournament | 1998 | 1999 | 2000 | 2001 | 2002 | 2003 | 2004 | 2005 | 2006 | 2007 | Career SR |
| --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |
| Australian Open | A | 1R | 1R | 3R | 1R | 2R | 2R | 1R | 1R | 3R | 0 / 9 |
| French Open | A | A | 1R | 4R | 2R | 1R | 1R | 1R | 1R | A | 0 / 7 |
| Wimbledon | A | 4R | 1R | 1R | 4R | 2R | 1R | 2R | 1R | 3R | 0 / 9 |
| US Open | 2R | 2R | 4R | 1R | 1R | 1R | 1R | 1R | A | A | 0 / 8 |
| Grand Slam SR | 0 / 1 | 0 / 3 | 0 / 4 | 0 / 4 | 0 / 4 | 0 / 4 | 0 / 4 | 0 / 4 | 0 / 3 | 0 / 2 | 0 / 33 |
Question:
Which 2006 tournament had a 4R performance in 2001?
Answer:
1R