The 2009 H1 Unlimited season is the fifty fourth running of the H1 Unlimited series for unlimited hydroplane, jointly sanctioned by APBA, its governing body in North America and UIM, its international body. It is the first season to run under its new name. The season began in July with the Madison Regatta, held in Madison, Indiana, United States, throughout the season, the series will consist of six races. For 2010, Oh Boy! Oberto (Miss Madison) was the National High Point Team Champion, while Steve David was the National High Point Driver Champion.