Darryll Holland will have his appeal against the 21-day suspension he incurred at Warwick last Saturday heard by the British Horseracing Authority disciplinary panel on Thursday.
The stewards looked into Holland's riding of the Mick Channon-trained Gold Maha in the PSA Peugeot Citroen Long Service Maiden Fillies' Stakes, in which his mount finished fourth.
They ruled he had failed to ride out for third place and was in breach of rule 156, his second contravention of that rule in 12 months.
Holland was suspended from May 23 to June 12 inclusive, meaning he will miss the Derby meeting at Epsom if his appeal is unsuccessful.