Tracking Harness How Can I Harness This Speed?

How can I harness this speed? - tracking harness

At the end of the cross-country meet will be, I realized that in the last 10 meters or less, something incredible happened. I think the only deaf, the adrenaline, but I soon felt my legs and I just do not think it's only getting faster and faster and you can earn 2 or 3 places in the race. I tried Giong this fast in the middle of the race when all the focus, and loses only slowly, but speed is not just for me, and I do not have long sprint. If I could, that energy for use when I wanted, I would be the title. So it is a way to use the speed when I want? Or just need to get the adrenaline?