 Today is the final day of the F1 Powerboat Alton Midwest Nationals on the Alton Riverfront. Several thousand people stopped by for a view of the racing throughout the morning and afternoon on Saturday, braving the sun and the heat, although an afternoon breeze offered some relief. If you plan to go today, free viewing is at the riverfront wall between the marina and the Argosy. Racing starts just after 9 this morning and runs into mid-afternoon.