Bonjoy’s standout campaign will last a little longer than expected.

The plan was to send her for a break before targeting Group 1 races later in the year, but those plans have been delayed by a week.

Although it was assumed Bonjoy was already in the paddock after missing the Detonator Stakes (1800m) due to a foot abscess, trainer Jason Miller has confirmed she will line up in Saturday’s Listed Sheila Gwynne Classic (1400m) at Ascot.

“She’s feeling great and ready to go,” Miller said.

“She’s been in fantastic form, and this will be her final race before heading for a spell.

“A three-month break fits perfectly into her schedule, and with just four runs this prep, she hasn’t been overworked.”

Bonjoy has been in dominant form at Ascot, notching up three consecutive wins since November.

She stamped herself as a serious Ascot carnival contender with victories in the Listed Starstruck Classic (1600m), the Celebration Of Life Day Trophy (1500m), and the Ascot Mile (1600m).

Her winning streak could have been even longer, but she was scratched at the barriers in the Jungle Mist Classic (1200m) and forced out of both the La Trice Classic (1800m) and Detonator Stakes (1800m) due to foot problems.

Bonjoy will carry the 58.5kg topweight in the Sheila Gwynne Classic and reunite with regular rider Clint Johnston-Porter.

The duo will jump from barrier five in a field of 10.

Despite the 39-day break between runs, Miller has taken a conservative approach to her preparation.

“I’ve actually backed off her work,” he said.

“She’s already fit, so I wanted to keep some freshness in her legs.”

Bonjoy’s progress over the past five months has given Miller confidence that she can reach the top level, with the Railway Stakes during the Ascot carnival a potential long-term target.

At the start of her campaign, he even rated her ahead of stablemate Admiration Express, who nearly pulled off an upset when finishing second to Light Infantry Man in last December’s Group 1 Northerly Stakes (1800m).

Miller believes Bonjoy’s biggest threat in the Sheila Gwynne Classic will be Generosity, an emerging mare trained by Simon Miller.

Generosity impressed when running second to Twain’s Angel in the Marjorie Charleson Classic (1200m) and looks set to peak.

“She’s a really nice mare, and I have a lot of time for her,” Miller said.

Simon Miller has had recent success in this race, with Amasenus (2022) and Stellar Vista (2023) winning in consecutive years.

Generosity will have a new jockey, with Lucy Fiore replacing Chris Parnham, and will start from barrier two.