Racing Victoria stewards are investigating betting patterns into last Saturday’s Group 3 Vain Stakes at Caulfield.

Jockey Jamie Melham steered $3.20 favourite Jimmy Recard to victory, but husband Ben was suspended for eight meetings for careless riding on board outsider Shaggy.

WATCH THE VIDEO ABOVE: Ben Melham cops ban for careless riding as wife Jamie storms to victory.

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Shaggy, a $12 shot, led for much of the 1100m race, but shifted dramatically off the rail on the bend.

The movement caused interference to three other horses, while opening a gap on the inside for Jimmy Recard to shoot through.

Jimmy Recard held off Tycoon Star to win by a head in a thrilling finish.

Stewards investigated the race and charged Ben with careless riding for the shift.

But they also said they would conduct a betting overview of the race as well.

“Whilst Ben Melham’s comments were noted, a betting overview of the race will be conducted,” stewards said in their report on Saturday.

7NEWS is not suggesting Ben shifted his horse to help his wife, only that stewards investigated it further.

Racing Victoria said the investigation remains ongoing.

“The betting overview of the Vain Stakes remains ongoing,” they said in a statement to 7NEWS.

“No timeframe has been set for the conclusion of this review however Racing Victoria (RV) Stewards will look to progress the matter as quickly as possible.

“The betting overview will involve analysis of the total wagering activity on the race by Stewards with assistance from RV’s Betting Intelligence Unit.

“Given the ongoing nature of the matter, we will not comment on possible outcomes at this time. RV Stewards will share their findings at the conclusion of their review.”

When questioned by stewards post-race, Ben explained that he had walked the track prior to the race and he was of the view that the ground away from the rail was superior and he felt this had been supported by the way the races had been run prior to this race.

Trainer Allan Kehoe also confirmed that the plan had been to ride Shaggy forward and lead.

“Ben Melham (Shaggy) pleaded guilty to a charge of careless riding under the provisions of AR 131(a), in that near the 300m he permitted his mount to shift out when not sufficiently clear of Shining Smile which was bumped, became unbalanced and taken out onto Tycoon Star, which was also hampered and carried wider,” stewards said in their report.

“Hay Street and Express Class, which were trailing, were also hampered.”

Stewards imposed an eight-meeting suspension, taking into account his guilty plea, good record and that the incident was in the low range.

He will be eligible to return to racing next Wednesday, August 27.

Jamie was not questioned by stewards after the race and it’s unclear if she has been involved in any follow-up questions.

Racing Victoria have been contacted for comment.

Meanwhile, Jamie tipped big things for her mount after the race.

“I know this horse has got talent and he’s really impressed me in his work and his trials, but I was concerned the penny had not really dropped with him yet,” Melham said.

“When he got that bump at the 200m, I thought he would put the white flag up, but he didn’t and dug deep.

“He’s really grown and matured, and the penny has dropped with him now.

“He’s got some big wins in store.”

Jamie and Ben married in January with the former changing her surname from Kah to Melham.