Jockey Club stewards have barred Global Harmony from races and trials until making a call on his future after he refused to jump for the second straight time at Sha Tin on Sunday.

Heavily backed into $2.2 favouritism, Global Harmony repeated his stubborn display from last month when he stood in the gates and took no part in the Class Two TVB Cup (1,400m).

The dual Sha Tin winner was cleared to race again by Jockey Club stewards after successfully jumping from the barriers in two trials in the lead up to Sunday’s race.

Stewards declared him a TVB Cup runner to the dismay of punters, who jeered Global Harmony’s rider Zac Purton in the parade ring before the following race.

“As this was the second consecutive occasion that Global Harmony had refused to jump, trainer Hayes was informed that the entries of Global Harmony in races and barrier trials will be refused until such time the stewards make a final determination in respect to the racing future of the horse,” the stewards’ report read.

Hayes described the latest setback as “shattering”.

“He went to the start fine and he went in the gates, but he just didn’t jump,” he said. “He did everything perfect at the trials and in the race he just didn’t do it.

“Chautauqua did it. I’ve never had one. In all the thousands of horses I’ve trained, I’ve never had a horse do this.”

Hayes floated the idea of sending Global Harmony back to Australia “to reset him”.

“He’s a sound horse with an incredible amount of ability,” Hayes said.

The setback dampened the Australian Hall of Fame trainer’s mood after he unveiled another promising galloper in Chateauneuf, who won the Class Four TVB Tung Wah Celebrity Show Handicap (1,200m) on debut.

Purton was in the punters’ good books when he sent Chateauneuf, the popular $3.10 favourite, forward from barrier 10 to lob in a perfect spot in fourth position.

The champion jockey had barely moved on the son of Fastnet Rock when he loomed ominously in the straight, surging to the lead at the 200m en route to a half-length victory over Great Spirit.

“He did a good job from the wide gate,” Hayes said. “He got a bit tired late, but he’ll improve a lot. He’s a very big horse and all his trials have been very easy.

“It’s just good to see another [Private Purchase Griffin] come out of Lindsay Park and win first time. My sons [Ben, Will and JD] are doing a good job choosing good horses for me.”

Hayes said Chateauneuf had the potential to get over more ground in the future.

“His pedigree says he’ll run a mile and I wouldn’t judge him too much on today,” he said.

“He did a good job because he worked hard for the first 400m, got a beautiful run and then got tired the last bit.”

Purton booted home his 67th win of the season when piloting Chateauneuf to victory.

He leads the race for the jockeys’ premiership from Karis Teetan, who boosted his seasonal tally to 47 wins with a double aboard Pierre Ng Pang-chi’s Starship Eighty and the Jamie Richards-trained G Liner.