Three different Mamaroneck studios are collaborating this Sunday to bring "Sweat for a Cure," offering a variety of classes to raise money for the American Cancer Society. Push Fitness is partnering with Fiore Pilates and Tovami Yoga to present the fundraising event, "bringing people together for a great cause through a day of fitness and fun, from 8 a.m. to 1 p.m." The day will feature back-to-back classes.