Savage Run 3

Book 3 in the death-defying, action-packed, Young Adult Dystopian Novella Series.
  Heidi has made in through the second of the grueling obstacle course phases and is ready to embark on the third. If she completes this round, she will finally receive her freedom. However, the closer she gets to the finish line, the more grueling things become. Not only does she have to fend off constant harassment from one of the competitors, but she suspects that President Volkov might be trying to dispose of her by making it look like she died in an accident. She is so close to receiving her freedom, but will she die before she attains her dream?