The concept is for the truck or tractor to pull a weight transfer machine, also

called a sled, as far as possible down a dirt track which is usually 300 feet long

with two white lines on each side for boundaries.  If any part of the truck or

tractor touches either of the white boundary lines, the truck or tractor will be

disqualified.

 

The competitors in each class draw a number in which they will hook to the

sled.  Each competitor starts with a tight chain and has two attempts to make a

measured pull.  On the first attempt, if the competitor lets off of the throttle

before reaching the 75-foot mark, the competitor will be allowed a second

attempt even if the competitor went beyond the 75-foot mark.  Once the

competitor makes a measurable pull, the laser measuring device located on the

sled then measures the distance from the starting line to the point at which the

front of the sled comes to a stop.  The distance of each competitor in a class is

then recorded and the results are based on how far each competitor pulled.  If

more than one competitor travels beyond the 300-foot mark, a "pull off" will

occur.  At this point, either more weight will be added to the sled or the sled

operator will use a faster gear which will increase the speed of the box.  The

competitors who are involved in the pull-off will then pull again to determine the

placings.