Complex sentence: The Stadium was host for many world class powerboat events including Unlimited Hydroplane, Inboard, Outboard, Performance Craft, Stock, Modified, Grand National divisions as well as other special event races.
Split into simpler sentences: The Stadium was host for many world class powerboat events including Unlimited Hydroplane, Inboard. Outboard Performance Craft, Stock, Modified, Grand National divisions as well as other special event races.