An apprentice jockey remains in a critical condition after a horror fall during a race meet in central-west NSW.

Izzy Neale, 22, was on board Marnoo when she and another rider fell 400m from the finish line during race six at Warren Racecourse on Sunday.

Racing NSW confirmed that Neale 'lost consciousness' and was airlifted to Dubbo Hospital, where her family remain by her bedside.

The Kieran Hazelton-trained Marnoo suffered a near foreleg injury and was later euthanised.

A race meet scheduled to be held at Scone on Monday has been postponed following consultation with jockeys and trainers.

Scone is Neale's home track in the NSW Hunter Valley, where she grew up.

'The thoughts and heartfelt support of Racing NSW and the entire community are with Izzy, her family, friends and colleagues during this extremely difficult time,' a Racing NSW statement read.

The other jockey involved, Diego Montes de Oca, was also taken to Dubbo Hospital with a suspected broken foot.

The incident has rocked racing world. 

'Tough day to be a jockey when things like this happen,' Melbourne Cup winner Robbie Dolan wrote. 

Former jockey Melinda Turner added: 'Praying for a miracle. A terrible day for our industry.'

Just a day earlier, Neale was racing in Sydney at Rosehill's Five Diamonds Day, where she told Sky Racing that she was due to settle on the purchase of her first home this week.

She won 88 races from 699 starts.

Neale recorded her first metropolitan win in July on It's A Tata in the Highway Handicap at Rosehill.