Two riders from six motorcycle disciplines will pair up to compete for bragging rights in the unique event.

All riders will compete on motocross bikes in three back-to-back six lap races on the dirt track section of the venue.

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The event will be highlighted by a compulsory pit stop between race 1 and race 2 as well as between race 2 and race 3 with riders having only 3 minutes for fuel, tyre change if necessary, adjustments and rehydration to return to the start grid.

The pair with the highest points at the end of race 3 will win the Discipline Showdown.

The six disciplines represented will be dirt track, motocross, speedway, road racing, supercross and off road.

"This is a very demanding track, something completely different" said multi National and State dirt track champion, Mick Kirkness. "Our dirt track team won't have any real advantage because of the tight nature of the track."

The riders selected to represent each discipline have outstanding records with international, national and state successes to their credit and for many, dirt track racing is where they started their careers.

The discipline representatives - all from the Hunter Region and all riding motocross bikes - are:

Dirt Track - Mick Kirkness and Paul Caslick

Motocross - Dillon Woods and Josh Whitehead

Speedway - Sam Masters and Josh Pickering

Road Racing - Tom Edwards and Jack Passfield

Supercross - Danny Anderson and Craig Anderson

Off Road - Beau Ralston and Kodi Stephens

More than 70 competitors have nominated for the TT Masters racing classes and with such a big program, gates will open at 12 noon with racing to commence at 2.30pm.

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