Robert Allenby insists his decision to pull out of next week's Australian Masters is purely because of an overcrowded schedule and has nothing to do with his previous threat to boycott home tournaments.

Allenby's late exemption into this week's World Golf Championship HSBC Champions tournament in Shanghai meant he faced the prospect of playing seven successive weeks.

"I had to give somewhere and the Australian Masters had to be it," said Allenby on Wednesday on the eve of the $A7.75 million event at Sheshen.

"My main goal this year was to finish as high as I could on the European Tour and coming here is a massive bonus, a limited field with no cut.

"If I was to go down to Australia, I wouldn't see my kids for six weeks.

"I love Australia and I love playing the tournaments but this year I just have to give them a miss."

So instead of flying from Shanghai to hometown Melbourne on Sunday night, Allenby will head back to his American home in Florida for a week off, before resuming at the European Tour's Race season-ending event in Dubai in a fortnight.

It will be the first time since turning pro nearly two decades ago that Allenby - who won the Australian triple crown of Masters, Open and PGA in 2005 - has not played at all at home but he knows he will hardly be missed next week with Tiger Woods heading the Masters field at Kingston Heath.

Earlier this year, Allenby threatened to boycott Australia after hearing some insensitive gallery comments about his then gravely ill mother at last year's Open at Royal Sydney.

Sure enough, he is skipping this year's Open to play instead at the lucrative Sun City tournament in South Africa.

Ranked 29th in the world, he is second highest ranked Australian behind Geoff Ogilvy.

Meanwhile, Allenby is adamant he will have nothing more to say regarding his spat with American Anthony Kim.

The US PGA Tour hauled Allenby over the coals after last month's Presidents Cup for describing Kim, among other things, as the current John Daly.

You could argue that Allenby actually did the tour a favour by injecting a bit of spice into the otherwise saccharine friendly Presidents Cup competition, but the tour obviously didn't see it that way.