the fitness gram pacer test is a multi-stage aerobic capacity test that progressively gets more difficult as it continues. The 20 meter pacer test will begin in 30 seconds. line up at the start. The running speed starts slowly, but gets faster when you hear this sound *beep* a single lap should be completed when you hear this sound *ding.* remeber to run in a straight line, and run as straight as possible. the test will begin on the word start. On your mark, get ready, start.