Fisher has snared two silvers and a bronze already and was hopeful of adding another on the final day of competition.
"Tomorrow it's all on again," she said.
"The crowd is amazing. I can't put it into words how good it is to be standing behind the blocks, being a finalist at the Paralympic Games and you've got 17,000 people cheering really loudly and then they go completely silent for the start. It's been an amazing experience."
Prendergast is due to race in front of considerably more in his last event, which could be his last ever in his fourth Paralympic Games.
He qualified third fastest in the T13 800m in front of 80,000 people, stopping the clock at 1:58.21. He was 21 seconds behind top qualifier Abdelillah Mame of Morocco, but was ecstatic with his race, knowing he had control of it the whole way.
"I just had to reach the final and anything can happen. I'm feeling pretty good and this crowd is something else."
Cyclist Sue Reid hung tough on the gruelling H1-3 road race, but things were again made difficult for athletes by the fact so many races take place on the 8km motor raceway circuit at the same time.
Reid finished eighth in two hours and 39 seconds, but was unable to catch the winner from America who took the chequered flag in 1:41.34.
The issues on the track were highlighted yesterday when the first-placed woman in the C4-5, Sarah Storey, caught up with the men's race inside the first lap, despite the men's field setting off two minutes ahead of the women.