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:
| year | drivers | team | duration / distance | race title | championship |
| 1948 | frank griswold | frank griswold | - | grand prix watkins glen | non - championship |
| 1949 | miles collier | collier bros | - | grand prix watkins glen | non - championship |
| 1950 | erwin goldschmidt | alfred goldschmidt | - | sports car grand prix of watkins glen | non - championship |
| 1951 | phil walters | briggs cunningham | - | sports car grand prix of watkins glen | scca national sports car championship |
| 1952 | briggs cunningham | briggs cunningham | - | sports car grand prix of watkins glen | scca national sports car championship |
Title:
6 hours of watkins glen
Statement:
the grand prix watkins glen race occured only one time in 1948
Answer:
refuted