Sprinting events include races from 100 to 400 meters that require maintaining full speed. Relay races involve teams of 4 passing a baton. The 100m tests pure speed over one lap. The 200m and 400m require more strength as runners lean around the curve. Hurdle races add jumping 10 hurdles to the 100m/110m and 400m races. Proper form includes keeping the head up, arms pumping, and legs extending fully with each stride. Relay exchanges have designated passing zones where runners precisely hand off the baton without breaking stride.