Casey amongst the leaders in Texas

Paul Casey and Geoff Ogilvy were battling it out for supremacy on the PGA Tour again as the wind-delayed Shell Houston Open played catch up.

With no opening rounds completed on schedule following high winds of 45 miles per hour on Thursday, Casey and Ogilvy completed their first 18 holes on Friday morning in Texas with the Englishman shooting a six-under-par 66, one better than the Australian.

Casey had lost to Ogilvy at the end of February in the final of the World Golf Championships-Accenture Match Play in Tucson, Arizona, near to their homes in Scottsdale, and the pair were soon vying for the halfway lead at Redstone Golf Club.

Both men turned straight around to begin their second rounds with Casey one shot off the pace set by Americans Nicholas Thompson and Briny Baird and John Senden of Australia at seven under on the par-72, 7,457-yard course.

Also on six under were Australian James Nitties and an American quartet of DA Points, Scott Piercy, Colt Knost and Tommy Armour III with Ogilvy, Jonathan Byrd of the USA and Northern Ireland's Rory McIlroy another shot back having shot 67s.

Americans Fred Couples, Dudley Hart and Justin Leonard formed part of a large group on four under alongside Justin Rose of England with Sergio Garcia of Spain and Englishman Lee Westwood among those at three under following 69s.