read moreIt also shows Woolworths' grocery dominance being challenged: its September quarter sales showed higher inflation than at Coles, which reported results on Oct. 26, while Woolworths food sales went backwards compared to higher supermarket sales at Coles.
In the same period, Australian food prices for Woolworths rose 7.3%, compared to 7.1% at Coles.
Woolworths food sales were below consensus forecasts and Coles "appears to have closed the sales gap somewhat", Jefferies analysts said in a research note.
Australian food sales "did not improve ... despite rising inflation", UBS analysts noted.
Including all divisions such as discount department store and its business-to-business unit, group sales rose 1.8% to A$16.4 billion, Woolworths said, roughly in line with analyst forecasts.