Golfer Robert Allenby says he feels "glad to be alive" after being kidnapped, beaten, robbed and dumped in a park.

The Australian pro was in Hawaii for the Sony Open at Honolulu's Waialae Country Club, but missed the cut at the tournament.

Mr Allenby (43) said he was out on Friday night when he was taken from the Amuse Wine Bar in Waikiki, where he was drinking with his caddie and a friend, and robbed of his wallet, phone, cash and credit cards.

He later woke up groggy in a park around 10kms away. A photo posted on the channel's Twitter feed shows abrasions to his forehead and nose and his eye swollen.

"I should be OK, just in a lot of pain," Allenby said.

"I'm just glad to be alive. I'm still in a bit of shock. I've been checked out by a doctor, and I should be OK."

"I was separated from my friend in the bar after we had paid the tab. Next thing you know, I'm being dumped in a park miles away."

"A homeless woman found me and told me she saw a few guys pull up and throw me out of a car."

Mr Allenby, who had been due to fly home on Saturday, said he could not remember what happened after that and says he was found outside the park by a man he described as "a retired military guy," who paid for a taxi back to his hotel.

"I called police from there," Mr Allenby said.

Surveillance footage from the bar is being studied by police, the Golf Channel reported. Television station KHON2 reports police were investigating the incident as a second-degree robbery.

Mr Allenby missed the cut at the Sony Open after carding successive rounds of one-over-par 71.

He has won four tournaments on the US PGA Tour, the most recent of which was the 2001 Pennsylvania Classic.

He turned professional in 1992 and has won 18 other tournaments around the world, 13 of them on the PGA Tour of Australasia.