The horse went to sleep, the trainer went to lunch and the jockey mucked out stables back home in Adelaide.

The lead-up to the $1 million Blue Diamond Stakes was as normal as it could be for the unbeaten favourite Miracles Of Life who arrived in Melbourne before dawn on Friday, ready for the biggest day in her life and those of trainer Dan Clarken and her apprentice jockey Lauren Stojakovic.

"She travelled fantastic, got off the float, walked into her box, had a big drink and then laid down and slept," Clarken said.

"She's in great order and ready to run."

Miracles Of Life goes into Saturday's Group One feature as the brilliant winner of each of her three starts.

She earned favouritism for Victoria's biggest juvenile race with a stunning win in last month's Blue Diamond Preview, lost it to the Sydney filly Guelph two weeks later and snatched it back when she drew the inside barrier.

All the way through Clarken has handled the horse who is by far the best he's ever had with the skill of a big-race veteran, which he is not.

"I know there aren't many people outside South Australia who've heard of me," he said.

"But in the end you have a horse and you train it the best you can and if they get into a race like the Blue Diamond there the same as all the others."

Miracles Of Life took her afternoon walk on race eve looking as though the trip had done her no harm her sleep had done her a lot of good.

She towed Clarken up and down the lane outside her stable, sniffed the air and went back into her box and ate every grain in her feed bin.

"I couldn't be happier with her," Clarken said.

"It's always a juggling act to know if you've done enough or done too much, but she had a really good hitout Tuesday morning and after that I was really comfortable with where she's at and very happy with the way she pulled up."

Clarken is also "completely comfortable" with the great unknown in Miracles Of Life's Blue Diamond bid - her jockey.

Lauren Stojakovic, a 29-year-old who had to give riding away after a fall and who is still an apprentice has been entrusted with a filly owned by a Sri Lankan billionaire and a fortune in bets in a race that is traditionally a frantic contest.

But Clarken and the owner didn't even discuss replacing her with a more experienced rider.

"Lauren's done a great job, she knows the horse and she's very dedicated," Clarken said.