Things You'll Need
Instructions
Test each matchbox that you want to race. Slide it gently to ensure that it travels along a straight line reasonably well. If it ends up at a different angle from where it started, then it's unsuitable for a race.
Find a buddy who wants to play matchbox race with you.
Go to an area that has a wide open floor. The floor must be smooth and must not have irregularities that will cause the matchboxes to fly off or turn upside down. It doesn't have to be a school gym, but the floor area should be large enough to ensure that the matchboxes won't collide with a wall, because you'll be giving them a lot of thrust. Otherwise the race won't be much fun.
Position yourselves on your knees, sitting level-parallel to each other and face in the same direction.
Use timing from one to three. On three, you each give a strong thrust to the matchbox in the right hand.
Play many races, switching matchboxes to eliminate the thrust bias. Mark the results on a piece of paper; the overall statistics will prove the winner.