Shelly Woods proved her medal credentials in the T45 1500m by claiming a much-needed and morale-boosting win in the heats.
The Blackpool athlete, the Beijing silver medallist, has endured a disappointing start to the Games, finishing eighth in the 5,000m and failing to make the 800m final but the 26-year-old, who will also go for marathon gold on Sunday, looked back on form as she finished strongly to come home in three minutes 42.12 seconds.
She said: "It was great, the aim was to qualify. I've had such a tough week and it's been hard to lift my spirits. I felt like I was falling out with the stadium, but I watched Dave (Weir) the other night (winning his second gold in the 1500m) and it just reminded me why I do this."
She added: "I went out to enjoy it and I did. I've had great support from the team and my friends and family, but you're the only one who can do it out there. My confidence has been there, it's just not been happening for me."
Sixteen-year-old team-mate Jade Jones, who is coached by Tanni Grey-Thompson, joined Woods in the final.
Ola Abidogun made up for his disappointment at not making the 200m final by winning his T46 100m heat in 11.21.
He said: "It felt good to perform after my poor performance in the 200m. This is my main event, and I'm still healthy and strong and maybe I can go quicker in the final."
Kyron Duke, 19, finished fifth in the F40 shot put with a best throw of 11.24m.
Sixteen-year-old Olivia Breen made it through to the T38 200m final as a fastest loser, while Melissa Nicholls joined Cockroft in the final of the T34 200m but Libby Clegg, the 100m silver medallist, did not make it through the heats of the T12 200m.