Emerging galloper Copartner Prance converted his Happy Valley form to Sha Tin with a fifth straight victory as Zac Purton bagged a three-timer at Saturday’s twilight meeting.

The champion jockey extended his perfect record on Francis Lui Kin-wai’s Copartner Prance, who survived an objection from runner-up Duke Wai to win the Class Two Lung Mun Road Handicap (1,200m).

Duke Wai’s rider Karis Teetan fired in the objection, alleging interference just before the 100m when he copped a bump from Copartner Prance. But stewards overruled the objection, determining the interference didn’t impact the margin of a head between the pair.

Easing to $3 second favouritism, Copartner Prance stayed on strongly from fourth to outlast Duke Wai by a head. The $2.4 favourite, Gorgeous Win, was a length behind in third.

Copartner Prance notched a pair of wins at Class Four and Class Three level in his hot streak at Happy Valley before breaking through for his first Sha Tin triumph at his fourth start at the track.

“It was another good effort,” Purton said.

“He began really well which helped – it was very fast mid-race – and I just waited for the right time, but he was good to the line. He just seems to keep doing enough.”

Copartner Prance’s latest win helped Lui again draw level with Pierre Ng Pang-chi in the trainers’ championship, with both handlers on 61 wins with nine meetings left this season.

“He’s got a big heart,” Lui said of Copartner Prance.

“When [Duke Wai] came at him in the straight, he just kept fighting.”

Surging towards a seventh jockeys’ premiership, Purton also guided promising three-year-olds Fast Network and Stunning Peach to victory on Saturday night.

Dennis Yip Chor-hong’s Fast Network backed up his strong trial form to comfortably win the Class Four Chai Wan Road Handicap (1,000m).

The son of Wrote settled third, stalking a hot pace set by the speedy Super Axiom, and swooped in the final 200m to beat Grand Nova by a length and a half.

“He trialled very good and also overseas, his trial was good,” Yip said in reference to Fast Network’s trial in New Zealand pre-import.

“I was watching the trial and I thought ‘we must buy this horse’. Hopefully he will keep improving and I think for the future, he will stay longer. Right now, he’s just learning.”

Stunning Peach enhanced his claims as a Hong Kong Derby (2,000m) prospect for next season with his first Hong Kong success in the Class Three POLA Cup (1,800m).

The Wootton Bassett colt was a dual Group One runner-up for Irish trainer Joseph O’Brien when known as Islandsinthestream, before he was sold to Hong Kong interests and joined the Tony Cruz stable.

Cruz prepared a double after also winning the Class Three Pok Fu Lam Reservoir Road Handicap (1,400m) with Beauty Glory under Angus Chung Yik-lai.