Updated at 1am.

RORY MCILROY ENDURED the worst of the weather on day two of the PGA Championship at Valhalla but still produced a four-under par round to move into the 36-hole lead on nine-under par

The world number one started Friday on the back nine and bogeyed the 12th before taking that shot back on the very next hole. Another birdie at 15 was followed by a twenty foot eagle putt on 18.

A bogey at the second briefly brought the 25-year old back to the field but birdies at seven and nine saw him card a 67 and take a one shot lead over Australia’s Jason Day and American Jim Furyk.

Day produced three birdes and an eagle in a spectacular opening nine holes, eventually carding a 65 to move into second spot alongside the experienced Furyk.

Joint overnight leaders Lee Westwood (-5) and Kevin Chappell (-3) both fell off the pace but Ryan Palmer did pick up one shot to move to seven-under.

Offaly’s Shane Lowry was unable to match yesterday’s heroics, dropping to level par following five bogeys and three bridies today. However, that is enough for the former Irish Open winner to make the weekend.

Graeme McDowell (+1) also just made the cut but Padraig Harrington (+2) and Darren Clarke (+6) both joined Tiger Woods (+6) in failing to make it past the halfway mark.

Heavy rainfall causes stoppage to second round of PGA Championship

‘It just shows where my game is mentally right now,’ says McIlroy after recovery