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:
| Place | Player | Country | Score | To par |
| --- | --- | --- | --- | --- |
| 1 | Jack Nicklaus | United States | 63-71=134 | –6 |
| T2 | Isao Aoki | Japan | 68-68=136 | –4 |
| T2 | Keith Fergus | United States | 66-70=136 | –4 |
| T2 | Lon Hinkle | United States | 66-70=136 | –4 |
| T2 | Mike Reid | United States | 69-67=136 | –4 |
| 6 | Mark Hayes | United States | 66-71=137 | –3 |
| T7 | Pat McGowan | United States | 69-69=138 | –2 |
| T7 | Tom Weiskopf | United States | 63-75=138 | –2 |
| T9 | Peter Jacobsen | United States | 70-69=139 | –1 |
| T9 | Tom Watson | United States | 71-68=139 | –1 |
Question:
What country does Mark Hayes play for?
Answer:
United States