Jeev Milka Singh was tied with Green at the Adare Manor.
Bradley Dredge (68) birdied two of the last three holes and shared third place with Marcel Siem, Johan Edfors and Michael Lorenzo-Vera.
Peter Lawrie birdied four of the last six holes for a 71.
Darren Clarke (72) was critical of the course near Limerick.
It was ridiculously difficult this afternoon with some of the pin positions we had, Clarke said. We were hitting 3-irons to flags that were completely inaccessible. It takes all the fun away and the ability to shoot a good score away.