Between 1953 and 1974 it was an amateur race, becoming a professional race in 1975.

It was first started in 1989 as an amateur race, but became professional in 1999.

Although the race went professional, there were amateur races earlier in the morning for kids and adults.

The race was held as an amateur race between 1980 and 1988.

Between 1968 and 1974 it was an amateur race.

In its early years, it was an amateur race.

Between 1972 and 1979 it was an amateur race.

It was an amateur race between 1949 and 1965.

Since 1949, it has been for professionals, after previously being an amateur race.

Between 1985 and 1995 it was an amateur race.