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.

The finale of the season was in November with the Oryx Cup, held in Doha, Ad Dawhah, Qatar. The 2009 Oryx Cup was the seventeenth running of the UIM World Championship for unlimited hydroplanes.^[1]

For 2010, Oh Boy! Oberto (Miss Madison) was the National High Point Team Champion, while Steve David was the National High Point Driver Champion.

The series became H1 Unlimited prior to the Oryx Cup, in a bid to internationalise the series, until then, the series was known as ABRA Unlimited (American Boat Racing Association) for five seasons.^[2]

• All boats are powered by Lycoming T55 L7C, originally used in Chinook helicopters, only turbine engine currently permitted in the series.^[3]

No	Team	Engine	Driver	Rounds
U-1	Oh Boy! Oberto (Miss Madison)	Lycoming T55 L7	Steve David	All
U-3	Cooper Motorsports	Allison V-1710 Turbo	Jimmy King	All
U-5	Formulaboats.com	Lycoming T55 L7	Jeff Bernard	All
U-7	Graham Trucking	Lycoming T55 L7	J. Michael Kelly	All
U-9	Jones Racing	Lycoming T55 L7	David Williams	4
U-16	Ellstrom Elam Plus	Lycoming T55 L7C	Dave Villwock	All
U-17	Our Gang Racing	Lycoming T55	Kip Brown	All
U-22	Matrix System Automotive Finishes	Lycoming T55 L7	Mike Webster	All
U-25	Superior Racing	Lycoming T55	Ken Muscatel	All
U-37	Schumacher Racing	Lycoming T55 L7	Jean Theoret	All
U-48	Miss Albert Lee Appliance	Lycoming T55	Brian Perkins	All
U-100	Leland Racing	Lycoming T55 L7	Greg Hopp	All

• H1 Unlimited Website