\"DD\" is a dead track which is not as slow as the term implies. Below is the listing of track conditions in Oz:
Australian Race Track Ratings
Category Scale Description
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
Race tracks that have received very heavy rainfall could have a track that is rated at worse than Heavy 10 which may cause the track to be unsafe for racing and the meeting can conceivably be postponed or abandoned. If a race club alters a track rating during the course of a race meeting it will sound a siren at the track to alert punters to the change.
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