LONDON – Six-time champion jockey Kieren Fallon went on trial Monday on charges of conspiring to fix races in Britain.

Fallon and five other defendants are accused of conspiracy to defraud customers who used the online betting exchange Betfair. They allegedly interfered with the 17 races from December 2002 to September 2004.

Fallon rode in all 17 races, winning five.

The horses did not always lose as they were meant to – but when they did, it allowed a syndicate run by businessman Miles Rodgers to make money on the online betting exchange Betfair, the jury was told Monday.

The defendants, including jockeys Fergal Lynch and Darren Williams, deny being part of a race-fixing scam.

Fallon, 42, formerly of Newmarket, Cambridgeshire, but now of Tipperary, Ireland, Fergal Lynch, 29, of Boroughbridge, North Yorkshire, and Darren Williams, 29, of Leyburn, North Yorkshire, also denied the charges.

In July 2006, Fallon was banned from racing in Britain until the completion of the trial. He has raced in Ireland, Australia and France since being charged.

On Sunday, Fallon rode Dylan Thomas (above) to victory in the Prix de l’Arc de Triomphe in Paris.