"Running Duel" is an exciting book from the famous writer William Hamilton Osborne, which tells about the exciting adventures of the main character during a long run. The main character is forced to fight his inner demons and obstacles on the way to achieve his goals through sports competitions. The book helps the reader to feel a proper adrenaline rush and overcome his own obstacles together with the main character. "Running Duel" is an exciting journey into the world of sports and self-improvement, which will leave an unforgettable impression on everyone who decides to open this book.