Lister was aboard Brigante in the i98FM Handicap (race five) when Cantaat, ridden by Patrick Murphy, suffered a broken fetlock on the home turn and fell.

Brigante toppled over Cantaat, sending Lister flying to the turf.

Cantaat was later destroyed and Murphy was left with a bruised right collarbone and concussion. He was sent to Wollongong Hospital for observation.

Murphy was still dazed after the incident and said he could not recall what had happened before the fall.

Stewards will question both jockeys when their health allows it. Stipes also inspected the section of the track where the fall occurred and deemed it fit for racing.

Races six, seven and eight were all re-scheduled.

Jockeys struggled in the conditions, with temperatures reaching well into the 30s.

Earlier in the day Sydney jockey Jason Lee rode a race-to-race double when he piloted Merconman to victory in the Wollongong Central Plate (1300m) and then Honest Lies in the Wilsons Holden Handicap (1600m).

Lee picked up the ride late on the Wanda Ings-trained Merconman, after Mitchell Bell withdrew.

"He did a good job. He won well, he did look a good thing on paper," Lee said.

"It's great to ride a winner for Wanda. She's a lovely women. A beautiful person," said Lee of the Hawksbury-based trainer.

Ings said she had expected the four-year-old gelding to run well.

"We've had a few hiccups with him, he can't handle wet tracks. He's had some bad luck. We revved him up last start and he only got beat four lengths," she said.

"We'll probably take him back to town next start."

In race three Lee kicked home Honest Lies for boss John O'Shea.

"He's been working well at home and we thought he would win," Lee said