Decarathon

Run. Run until the finish line. Run until you complete all major marathons. Run until you become a legend. Participate in marathons all over the globe. Manage your energy wisely, as you don't want to...run out of power. Choose which sponsor you want to represent during your glorious run. If you manage to fulfill the contract, you'll get a reward. Will you manage to finish 1st at the 10 major marathons?