England's Laura Trott defied a kidney infection to win a thrilling duel with Wales' Elinor Barker in the women's points race, securing gold in a photo finish in the Sir Chris Hoy Velodrome.
Trott, the double Olympic champion, finished level with her Team GB colleague on 37 points after 25 hotly-contested kilometres but secured top spot on the podium by pipping Barker in the very last sprint - and only then after studying replays.
"I've had such a bad week of it with the kidney infection, I was devastated," she said.
"It really set me back and knocked my morale a bit. I hardly ate anything for two days, I've been living off porridge and I don't like porridge.
"To come away from all that and win is just unbelievable
"With my parents here watching me, I've been worrying them sick the past couple of days when I have been ill.
"But when I woke up this morning, I was actually hungry and had a good feed, so it all paid off in the end.
"This is right up there with the Olympics. I am so over the moon at the moment, it is so hard for me to describe."
Shetland schoolgirl Erraid Davies won a bronze medal in the women's 100m breaststroke SB9 final at Glasgow 2014 after the 13-year-old set a new personal best for the second time in a day.
Scotland's youngest-ever Comonwealth Games competitor had come second in the heat on Sunday morning and fought her way into the medal positions in the last quarter of the final.
Roared on by the Tollcross crowd, she finished just behind Australian silver medallist Madeleine Scott in one minute and 21.38 seconds, with New Zealand's Sophie Pascoe taking gold.
England's Siobhan-Marie O'Connor followed the schoolgirl's feats with gold in the 200m individual medley to take her medal tally for the Games to five.
The 18-year-old, who had already won three silvers and bronze, broke a Games record with a time of 2:08.21, more than two seconds ahead of Australia's Alicia Coutts.
Fran Halsall set a new Games record as she took gold in the 50m butterfly final.
The 24-year-old made it a double following her 50m freestyle triumph by posting a time of 25.20 to claim her ninth Commonwealth Games medal in total.
Meanwhile, shotgun aces Charlotte Kerwood and Steve Scott blasted their way to double Commonwealth Games glory, as both secured gold in their respective double trap events.
Kerwood, 27, was in devastating form at the Barry Buddon Centre in Dundee, nailing 94 of her 120 clays to claim her third individual Commonwealth gold medal.
Kerwood won her first gold at Manchester 2002 aged just 15, and would probably have more in her collection had the event not been excluded in Delhi last time out.
She finished two shots clear of India's Shreyasi Singh, who claimed silver, while Steve Scott beat compatriot Matthew French to secure gold in a dramatic double trap final.
With Olympic champion Peter Wilson not competing in Glasgow 2014, hopes rested with Scott, 29 from Sussex, and 33-year-old French of Oxford.
And the duo did not disappoint, hitting 27 out of their 30 targets in the semi-final to go into a three-way shoot-off with India's Asab Mohb to reach the gold-medal match.
Mohb was first to miss, guaranteeing a British one-two, a nd it was Scott, a pairs winner at Delhi four years ago, who triumphed against Commonwealth rookie French in a final of incredible quality.
French dropped just one clay out of 30 but Scott nailed every one to secure gold.
Sophie Thornhill and Helen Scott celebrated a second tandem triumph at Glasgow 2014, claiming gold for England in the 1,000-metre B2 time-trial.
Eighteen-year-old para-cyclist Thornhill and her pilot Scott followed up their day-one victory in the B2 sprint with another rousing performance at the Sir Chris Hoy Velodrome.
Just as they did on Thursday, Thornhill and Scott nudged Scottish favourites Aileen McGlynn and Louise Haston into silver with a time of one minute 0.87 seconds.
England earned a shot at badminton gold as they reached the final of the Commonwealth Games team event with a hard-fought 3-0 win over India.