Give you a statement and table with its title in Markdown format, please determine whether the statement is supported or refuted by, or is unrelated to the table. It'a binary classification problem, you should choose the answer between supported and refuted. Table cells in one row are seperated by '|', and different rows are seperated by '
'.

Table:
| date | tournament | winning score | margin of victory | runner (s) - up |
| aug 28 , 1982 | shootout at jeremy ranch | - 9 (74 + 71 + 69 + 65 = 279) | 1 stroke | miller barber , don january |
| sep 19 , 1982 | merrill lynch / golf digest commemorative pro - am | - 10 (68 + 7 + 68 = 206) | playoff | bob toski |
| jul 25 , 1983 | us senior open | + 4 (73 + 73 + 69 + 73 = 288) | playoff | rod funseth |
| apr 22 , 1984 | senior pga tour roundup | - 14 (68 + 69 + 65 = 202) | 2 strokes | bob stone |
| mar 15 , 1987 | del e webb arizona classic | - 15 (68 + 65 + 68 = 201) | 5 strokes | bob charles , dale douglass |
| jun 28 , 1987 | greater grand rapids open | - 13 (69 + 68 + 63 = 200) | 3 strokes | miller barber |
| may 8 , 1988 | vantage at the dominion | - 14 (70 + 68 + 67 = 205) | 1 stroke | chi - chi rodríguez |
| jun 12 , 1988 | mazda senior tournament players championship | - 10 (69 + 68 + 74 + 67 = 278) | 2 strokes | al geiberger |
| oct 22 , 1989 | transamerica senior golf championship | - 9 (69 + 70 + 68 = 207) | 3 strokes | al geiberger |
Title:
billy casper
Statement:
billy casper had a margin of victory of 2 on june 28 , 1987 and october 22 , 1989
Answer:
refuted