Flyhalf Greig Laidlaw kicked a penalty after the full-time siren to give Six Nations wooden spooners Scotland a stunning 9-6 win over Australia in wet and windy conditions at Hunter stadium in Newcastle, Australia, on Tuesday.
It was Scotland's first win in Australia for 30 years.
And in Nagoya, Japan, Somoa edged Tonga 20-18 in a hard-fought opening match of the IRB Pacific Nations Cup.
Fiji then beat defending champion Japan 25-19.