TOKYO (Reuters) - Martina Hingis swept aside Amanda Coetzer 6-2 6-1 to win the Pan Pacific Open Sunday and then insisted a ''killer instinct'' was not always part of the job requirement of the world's top player.

Hingis capped a week that saw her win her third straight Australian Open and regain the world number one ranking from American Lindsay Davenport with a near flawless display against the South African.

The Swiss said after the 44-minue demolition: ``People told me when I was younger that I didn't have the killer instinct, I but I said you don't always have to win like Steffi (Graf) all the time 6-0 or 6-1.''

Hingis, world number one for 80 weeks until losing the perch to Davenport last October, said the drop from the top spot had caused her to improve her physical training and practice ethic. She had also lost some weight.

But, most importantly, she said, her head was ``thinking again.''

Hingis played the role of the smiling assassin against number seven seed Coetzer, who spent much of her time scampering about the baseline.

The Swiss led 4-0 in the first set and 5-0 in the second as she powered her way to the $150,000 winner's check.

The 1.58-meter (5' 2 Di) Coetzer had been dubbed ``the little giant'' by the Japanese media for knocking out Davenport in the quarter-finals and then Monica Seles.

But she had no answer against Sunday's effervescent opponent. ``I felt like I was under pressure from the very first shot,'' she said.

Deposed number one Davenport said: ``I think Martina deserves it right now.''