Marathon Dominator System Reviews & PDF Download. Jill’s experience and knowledge of modern training techniques will benefit runners, from the beginner to the experienced marathoner. Her program helped me meet my race goals and was easier to work into my schedule than some other training regimens I have tried. I spent two years trying to qualify for Boston and was frustrated that none of the programs I tried gave me the results I needed. I came across Jill’s product online and decided to give it a try. It was easy to follow and all the workouts were outlined in a formatted schedule. I broke my previous marathon PR by over 8 minutes and will be running the Boston Marathon this year. The program is about quality, not quantity. I feel like her program took a holistic approach to fitness and training, which not only helped physically but also gave me a mental boost. I would recommend her program to anyone. Break Your PR book PDF download.