After waiting six and a half hours to resume his bid for The Celtic Manor Wales Open, Richard Ramsay maintained a one shot advantage over the closing holes.
Heavy rain flooded fairways and bunkers on next year's Ryder Cup venue and the third round eventually began at 2pm.
European Tour rookie Ramsay, winner of the US Amateur title three years ago, resumed with a one shot lead, but was in rough and sand on the first and bogeyed.
England's Ross Fisher and Robert Rock were only one behind overnight, but Fisher also bogeyed the opener and after a birdie on the par five next dropped another shot at the fourth.
Rock, meanwhile, ran up a six on the second and followed Montgomerie into the water on the next.
All that left Ramsay six under and Fisher five under along with Australian left-hander Richard Green and France's Jean-Baptiste Gonnet.
With the last group not teeing off until 4pm it was doubtful whether the round would be completed tonight.
