"I am okay after a very long flight, but it was good to get here and loosen up," she said.
Martinez has struggled for much of the year with an Achilles' tendon injury, and the Auckland tournament is her first since Wimbledon in mid-year.
Her present ranking is her lowest season-ending position since 1998, and she said she hoped the Auckland tournament was the start of better things.
"It is a good start to preparing for the Australian Open, in the windy conditions."
And when it comes to her opposition at Stanley St, the fourth seed said every player would be a threat.
On her previous visit to New Zealand, she won the then WTA tournament in Wellington as a 17-year-old.
