Check out our virtual stadium in Idle Sprint Race 3D. The 100-meter sprint race is just starting there and you can help one of the runners become a champion at each level. To do this, you need to run first to the finish line. Click on the big yellow button and you will see a scale at the top. It will fill in as you click on it. But try to avoid redness, otherwise your runner will collapse from exhaustion. Keep running so that you have enough strength to the finish line. Further, before each level, you can improve the physical characteristics of the hero by choosing them from three options in Idle Sprint Race 3D.