New Zealand Amateur champion Mathew Perry also fronted on day three with a one-under par 71 and Sam An had a three-over 75 for the third counting score for a one over total.
"The day belonged to Mat and Ryan," New Zealand Golf talent and coach development manager Gregg Thorpe said.
"They both played superbly and were the pick of the field today."
The Nomura Cup returns to the Denarau Golf Club today for the final round and the Kiwis want to keep their momentum going.
"We had a solid come back from day two, while they didn't make huge inroads into the Aussies' lead, they did nibble away at it a bit and showed the field what they are capable of," said Thorpe.
- NZPA