The Northborough Rotary Club and town Recreation Department have revamped the Biggest Loser/Winning Fitness Challenge for the winter season, and renamed it the Winning Wellness Challenge. Signups are available for the fun fitness program, which will feature group exercise, motivational and informative health discussions, and cash prizes. The weekly program will meet on Wednesdays from Jan. 16 through April 10 in the Algonquin Regional High School cafeteria. The cost is $60, and participants must be at least 18 years old. Child care will be available for an additional fee. Cash prizes are determined by the highest percentage of weight loss. First prize is $500, second prize is $300, and third prize is $200. For more information, contact Steven Georgeson at firstname.lastname@example.org. Registrations can be made online at www.northboroughrecreation.com.