Rory McIlroy made it 2 wins from 2 in the WGC Matchplay in Texas - defeating Denny McCarthy by 2 holes.
McIlroy plays Keegan Bradley today as he bids to reach the last 16.
Seamus Power is still in the hunt - he takes on Sam Burns later - but Shane Lowry is out and only playing for pride against Jordan Spieth.
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Leona Maguire is 2 under par following her opening round of the LPGA's Drive On Championship in Arizona - 5 shots off the pace.
Tom McKibbin is 4 under entering his second round at the Jonsson Workwear Open on the DP World Tour in South Africa.
Hennie O'Kennedy is the current leader on 10 under.
