Maloney was riding Oh Mona in race seven on Sunday when she appeared to stagger near the finish line and dislodged him.
Maloney was taken to hospital with a suspected broken nose, teeth injuries and sore ribs.
He was to undergo further tests and X-rays in hospital.
The fall left a divot in the track which needed filling so the meeting could proceed.
After inspecting the track with jockeys it was decided to put all remaining race times back one.