LAUNCESTON ultra marathon runner Aub Henricks will defend his title in the Convict and Wenches 50-kilometre race to be held in the Narawntapu National Park at Greens Beach on Sunday.
Race record holder Henricks can expect challenges from the well-performed Sydney runner Jonathan Worswick, Michael McIntyre, of Hobart, and Launceston's John Claridge.
Claridge has some good recent form with the best time of the season in the Launceston 5km Park run and won the 2012 Ross marathon.
Worswick won the 2011 Nerang State Forest 50km and placed second in the 100km Surf Century race at Anglesea last September.
Henricks is no slouch having won the Launceston 6-hour race with the impressive distance of 75.47km and other ultra-distance events.
McIntyre is a former winner of Three Peaks and the Cadbury marathon.
In the women's section, record holder Amy Lamprecht (formerly Hinds), of Beaconsfield, will be challenged by Hobart's Jacqui Guy.
Lamprecht won the women's section of the 2012 Ross marathon and was second in the 2012 100km Surf Century.
Guy is a former winner of Three Peaks and two-time winner of the Bruny Island 64km race.
The event has attracted a record field of 90 runners.
Race organiser Ian Cornelius said accommodation at Greens Beach has been booked out, with lots of interest expected.
The 50km event starts at 8 am, to coincide with low tide.
Entrants in the 50km who expect to take longer than six hours can start at the earlier time of 7am. The 25km event will start at 9am, the 10km at 10am and the 4km children's (17 and under) run at 11am.
For more information, visit www.convictsandwenchesmarathon.com