Gravity Racer

Q:  I am coaching Gravity Racer. I received a ramp/launcher that does not have distance marks on it. The event description says it will be marked in 10 cm increments. How are the lines labeled? Are they labeled from the top of the ramp? from the bottom? starting/ending at the plastic or the end of the actual board? A picture might be helpful.

A: The first marking (110) is 10 cm from the top of the ramp. Distance marks count down each 10 cm from that point. Please see photos below.