2016 GRidiron Classic Join Unity for the 2016 GRidiron Classic! This Saturday, August 27, Unity football is playing their season opener in the GRidiron Classic. Unity will take on Allendale at 1:30pm at Lubbers Stadium on the campus of Grand Valley State. Please purchase tickets at the Unity school office by the end of the day Thursday. The cost of tickets is $8 for an adult and $6 for a student. For more information you can visit the school office or contact the athletic department at 616.669.1820 or e-mail firstname.lastname@example.org.