Martha's Vineyard Agricultural Fair, 10 a.m., through August 24 at the fairgrounds in West Tisbury. Rides, games, shucking and fiddle contests, skillet toss and livestock shows. Tickets are $10 for adults, $5 for children ages five to 12. Adults over 62 and children under 5 attend for free. Begins at 10 a.m. Visit mvas.vineyard.net.