Underdog battle 100 days out from NSW poll

With 100 days to go until NSW voters head to the polls, both major parties are vying for underdog status.

Premier Gladys Berejiklian on Thursday was keen to downplay her chances of winning the March 24 election arguing that securing another term for the coalition would be "tough".

"You can't take a single thing for granted - we're all working our guts out," she told 2GB radio.

But Labor leader Michael Daley rubbished the premier's claim she was the underdog citing $70 billion worth of "public cash" the government had to spend on election promises.

"She's got a war chest like no government has had before and you still think you're the underdog? Isn't there something wrong with your show?" he told reporters on Thursday.

Flanked by nurses, emergency service workers and union members, Mr Daley compared a potential Labor victory to climbing the world's tallest peak.

"I still have to climb Everest here. But I'm going to give it as good a go as I can because the people of NSW desperately need a Labor government and I intend to give it to them."

Mr Daley did not make specific funding commitments but said tackling the rising cost of living would be a key priority.

He promised to visit regional communities including the Upper Hunter electorate which saw a 20.8 per cent swing against the Nationals at the 2015 election.

Labor has to gain 13 seats in the 93-seat Legislative Assembly - or a nine per cent swing - to win government in 2019.