Maiden
For horses that have not yet won. These are often full of unexposed types and can be difficult to read, especially when newcomers are involved.
Novice
For horses with limited winning experience. These races often sit just above maidens in terms of development and can contain promising youngsters.
Handicap
Weights are assigned according to official ratings. As in jumps racing, the aim is to give each runner a fair chance.
Nursery
A handicap restricted to 2yos. These can be tricky because young horses are still learning and improving quickly.
Seller
A lower-grade race in which the winner, and sometimes other runners, may be offered for sale afterwards. These are much less fashionable than they once were but still appear occasionally.
Claimer
Races where horses can be bought for a set claiming price. The class level is usually modest and the structure differs from standard handicaps.
Group Race
The elite level of flat racing. Group 1 is the highest level, followed by Group 2 and Group 3. These are the races that shape championships, stallion values and the sport’s biggest meetings.
Auction Race
Restricted races based around sales conditions, usually linked to how much a horse cost at auction. These often feature younger horses and can create very specific race conditions.