Races are organized according to age and sex of the horses: geldings, for example, are divided into five age categories, from 2 to 6 and older.

Each Naadam includes at least one race of stallions (AZARGA), and at least three races for geldings. In Ulan Bator, a race for pacing horses is also planned.

The distance traveled by the race is also dependent on the age of horses, 15 km for 2 years, 30 km for horses over 6 years.

The start of the races is very specific: all the horses come together behind a standard-bearer, cross the finish line and follow the official rider until the starting line.

Arrived at the starting line, a whistle gives the signal to start the race, riders turn around and gallop toward the finish line as fast as possible.

The first five horses are rewarded: people sing their praises, and they are sprayed with fermented mare's milk (airag) on ​​the rump, neck and cheek.