Australia's rebuilding New South Wales Waratahs stunned New Zealand powerhouse the Crusaders on Saturday, their first win over Kiwi opposition since 2019.
The ACT Brumbies were convincing winners over the Hurricanes on Sunday.
"The other sides all went close ... so it's good," Rennie said in Melbourne on Monday.
"I think we're certainly more competitive and teams can take a lot of confidence out of that.
