Updated on June 24, 2012 at 7:10 a.m. E.T.

Black Caviar, the Australian champion sprinter, came out the victor at the 2012 Royal Ascot.

The thoroughbred's win on Saturday means she maintains her unbeaten record of 22 consecutive victories, but she almost threw it away.

The Wonder From Down Under shut down a few meters from the winning post, and her overconfident jockey Luke Nolen let her idle near the line. The great mare lasted though, and snagged the Diamond Jubilee Stakes by a head and neck from the French duo Moonlight Cloud and Restiadargent.

Nolen was the first to admit his mistake, according to Reuters.

It was an error that every apprentice is taught not to do, and I got away with it today, Nolen told reporters. I probably just underestimated the testing track. It is going to overshadow what was a very good win. They are going to talk about my brain-fade rather than the horse's fantastic effort.

Trainer Peter Moody told Sky News, It may be that she has graced a racetrack for the last time.

I don't want to put the cart before the horse, he said. Let's just get her home and have a look at her.

Moody admitted he became worried after the first 400 meters and was even more concerned when the mighty thoroughbred was just 300 meters from the finish line.

Still, he said she did a hell of a job, though she wasn't traveling as keenly as she used to.

She didn't have her ears pricked, her neck arched, Moody said. But she was always in control of the race.

Britain's Queen Elizabeth II went to the paddock afterward to look at the horse and pat her for congratulations, Reuters reported.

It was announced Sunday that Black Caviar suffered two muscle tears and severe bruising to her hind quarters on the day of her big win. Moody said he doesn't know at what stage of the race the mare got the injuries, but that a veterinarian said she the horse would have definitely felt it during the run, according to to news.com. au.

Moody said Black Caviar has had something of this sort before and that she will be quarantined and sent home. She will be treated while in quarantine.

No decision has been made yet on Black Caviar's racing future and it won't likely come until after she returns to Australia and recovers from her injury.