Hayley Turner is reported to be on the mend but remains in hospital following a fall on the Newmarket gallops.
She was riding work for trainer Phil McEntee on Tuesday morning when the horse she was on broke a leg and fired her into the ground.
The rider, who became the first female jockey to partner 100 winners in a calendar year in Britain in 2008, was initially knocked unconscious in the incident but was then able to walk into the ambulance.
She was taken to Addenbrooke's Hospital in Cambridge for tests and observation.
Her friend, Newmarket trainer Amy Weaver, said: ‘I went to see her this morning with her family and she was a lot brighter and much better.
‘She had a good night's rest and went to sleep again this morning with visitors around. She's quite tired, so she needs rest to get over it.
‘I think they will keep her in for observation a bit longer and go from there. She's keen to get home though. She is much improved as to what she was yesterday.
‘She was asking if she'd missed anything and how many winners she was losing out on.’