OMalley collected his third European Tour title ' and first since 1995 ' at the Marriott Forest of Arden in Warwickshire, England.
The then 35-year-old became the fourth Australian to win the event after producing a late surge to surpass Frenchman Raphael Jacquelin. OMalley shot 31 on the back nine for a 6-under 66, and a 13-under-par 275 total. Jacquelin bogeyed the last to finish at minus 12.
This years field is much the same as last, as many of Europes biggest names are either playing on the PGA Tour or taking the week off in preparation for next weeks United States Open.
Three players in this weeks field will be heading to New York for the seasons second major upon the conclusion of play in England. Darren Clarke, Paul McGinley and Niclas Fasth will make the cross-continental journey.
Clarke is a two-time winner of this event, having won in 1999 and 2000. Mark James, in 1989 and 90, is the only other player to successfully defend his title.
Past champions include Seve Ballesteros in the inaugural event in 1979, Greg Norman (1982), Ian Woosnam (1993), Colin Montgomerie (1994) and Lee Westwood (1998).
Full field and tee times for The Compass English Open