Magnussen in ominous form

3 years ago, 14 December 2011 (AEST)

James Magnussen has warned he's only just warming up and is three to four months ahead of where he was this time last year after cruising to victory in the 100m freestyle at the Queensland State Championships on Tuesday.

The dual 2011 world championship gold medal winner easily accounted for Matthew Targett and 200m winner Cameron McEvoy in what Magnussen described as a "training session".

Magnussen's time of 48.63 was just .34 of a second slower than the time that bagged him world championship gold this year.

But he said he's still go plenty to do.

"Swimming quickly this morning and then trying to back it up, which I've been struggling to do this week, (needs improvement)," he said.

"That first 50m has been fairly slow this week, both in the 100m and the 200m. (After) a bit of speed training and a freshen up I will go a lot quicker."

"That's the same sort of time I went around trials last year which shows that I'm about three, four months ahead of my preparation," he said.

Veteran Michael Klim, aiming for a comeback in London, was ruled ineligible for the 100m freestyle despite qualifying seventh because of the visiting swimmers' rule which only allows three non-Queenslanders in the finals.

Malawi-born Cate Campbell impressed in her comeback from glandular fever to scorch home in the 100m freestyle, claiming gold from Melanie Schlanger and 16-year-old Commonwealth Games hero Yolane Kukla.

Campbell posted a time of 53.82, her best in a textile suit, the second best time posted by an Australian this year and enough to crack the world top ten in 2011.

It has been a long time coming for the Beijing bronze medallist, who had to stack 10kg of muscle back on her frame this year after the illness ravaged her body.

Britain's Ellen Gandy is emerging as a real threat to the Australian swimmers in London after cruising to her second gold of the championships, this time in the 200m butterfly.

Following her 100m win on Sunday night - in the same race an undercooked Libby Trickett could only manage ninth - she powered home on Tuesday night to stun Australian medal hope Jessicah Schipper.

Gandy, who is based in Melbourne, touched the wall more than a second ahead of Schipper who posted a time of 2min 10.48 - over six seconds slower than her Australian and Commonwealth record time.

Gold Coast swimmer Chris Wright won the men's 200m butterfly as fastest qualifier Hugo Morris fell off the pace in the final.

He won ahead of Perth's Travis Nederpet and Sydney's Jayden Hadler.

Emily Seebohm, backing up her 100m backstroke heroics of Monday night, stormed home in the 200m backstroke to claim gold ahead of Japan's Tomoyo Fukuda. She also qualified for the final of the 100m freestyle, finishing sixth.

Sydney's Matt Hawes took gold in the men's 200m backstroke ahead of Joshua Beaver and Ashley Delaney.

Gold Coast's Kylie Goldman was a dominant winner of the women's 800m while South Korea's Tae-Hwan Park - the reigning Olympic 400m champion - won gold in the men's 1500m to round out the distance events.

AAP