If anyone else had the same question as me above,
FAST 1 A dry hard track
GOOD 2 A firm track
GOOD 3 Ideal track with some give
DEAD 4 Track with give, better side of Dead
DEAD 5 Significant amount of give, worse side of Dead
SLOW 6 A mildly rain affected track, better side of Slow
SLOW 7 Rain affected, worse side of Slow
HEAVY 8 Soft track, just into Heavy range
HEAVY 9 Very soft, genuine Heavy
HEAVY 10 Very soft and wet, heaviest category
http://www.bet4place.com/track-ratings.htm