- Calves are given a head start out of the chute;
- If the cowboy or his mount leave the chute early and break the fence, a 10-second penalty is added to their time;
- Once out of the chute, the cowboy throws his loop as soon as possible to catch the animal’s head;
- He must then dismount, throw the calf to the ground and tie any three legs together;
- Time stops only once the rider in back on his mount and the tie holds for 5 seconds.
- Contestants must own or lease their horse;
- Best time wins;
- Calves weigh in average 120 Kg (250 lbs.);
- The rope used for tying the legs is called “pigging string” and measures 6-foot in length;
- Stem races (Corriente or Longhorn) are more resistant that traditional farm cattle.