Golf aces Hannah Green and Minjee Lee are warming up nicely for the Paris Olympics, Australia's two big guns both in early contention at the LPGA Tour's Canadian Open.
Lee and Green both fired three-under-par 69s to be tied second after the first round of the $US2.6 million tournament in Calgary.
In-form American Lauren Coughlin set the pace with a 68 featuring five front-nine birdies at Shaunghessy Golf and Country Club on Thursday.