MORE: Commonwealth Games Day 8 Photos
Pearson qualified for the final with a time of 12:69 seconds with fellow Aussies Shannon McCann and Michelle Jenneke also through.
After having the weight of Hollingworth words and fallout on her mind, Pearson was adamant she is in the right frame of mind to defend her Commonwealth title.
Hollingsworth has been sent home for stinging criticism of Pearson surrounding her non-attendance at a pre-Games training camp.
“It’s been a huge distraction for me in the past week," Pearson said.
“I’m in a really good headspace now, I want to keep going.
“You saw how I ran tonight, and that showed how important preparation is for an athlete.”
Disgraced Australian weightlifter Francios Etoundi has been fined 400 poinds for headbutting Welsh athlete Gareth Evans after allegedly having a disagreement over a girl.
Etoundi, who won bronze in 77kg divison, is due to fly out of Glasgow today after being ordered to leave the Commonwealth Games village.
Rising Aussie cyclist Rohan Dennis claimed the silver medal in the men's time trial - finishing nine seconds behind English winner Alex Dowsett.
After several second place finishes on the WorldTour this year, Dennis was happy but also frustrated with the result.
“But to be second again - it’s now four or five second places this year - so it’s getting a bit annoying you could say,” Dennis said.
“At the same time you’ve got to take the positives out of it and it’s still a silver medal at the Commonwealth Games which is still a huge result.
“I feel proud and bittersweet.”
In other Aussie medal news, Angela Ballard won gold in the women's 1500m Para Sport wheelchair final; there was silver for gymnast Larissa Miller in the women's uneven bars final and Kurt Fearnley in the men's 1500m Para Sport wheelchair final while bronze was awarded to Damon Kelly in the 105kg-plus weightlifting event and Katrin Garfoot in the women's road time trial.
Meanwhile, Nijel Amos executed a stunning finish to defeat hot favourite David Rudisha in the 800 metres final.
The 20-year-old from Botswana was trailing heading into the final 50 metres, but he dug deep to find an extra burst to defeat Kenya's Rudisha in a time of one minute and 45.18 seconds.
Amos goes some way to avenging the 2012 London Olympic Games when he finished second to Rudisha – who produced a world-record time to take gold.
Speaking to BBC Sport after the race, Amos paid tribute to Rudisha: "I am so happy but David Rudisha will always be the hero of 800 metres."
There was a clean sweep of the medals for Jamaica in the men's 200m, Rasheed Dwyer topping the podium ahead of Warren Weir and Jason Livermore.
Dwyer came off the bend strongest and dipped for the line to record a time of 20.14secs.
Blessing Okagbare became a double Commonwealth champion as she added the 200m title to her 100m triumph.
The 25-year-old made an electric start and, although she faded somewhat towards the end, she had more than enough to win in a time of 22.25secs ahead of English duo Jodie Williams and Bianca Williams.
World champion Jehue Gordon was one of the star attractions in the men's 400m hurdles but the Trinidadian was defeated in a keen battle down the straight by South Africa's Cornel Fredericks, who overcame heavy strapping on his thigh to seal the gold.
Jeffery Gibson of the Bahamas collected a bronze medal, while Jamaica's Annsert Whyte fell to the ground in the final stages.
In the same event in the women's race, a false start ensured a nervy field but favourite Kaliese Spencer clocked a time of 54.10secs to win gold for Jamaica, while Scotland's Eilidh Child added a silver medal to the one she collected in Delhi four years ago.
India's Vikas Shive Gowda posted a distance of 63.64 metres to win the men's discus to atone for the disappointment of finishing second in Delhi, while Nigeria's Ese Brume jumped 6.56m to win the women's long jump.
Linda Villumsen and Alex Dowsett claimed time trial gold in the respective men's and women's events.
In gymnastics, England's Max Whitlock made it three gold medals for the Games by taking top spot in the men's floor.
Claudia Fragapane also made it a hat-trick of Commonwealth golds for England by winning the women's vault, and compatriot Rebecca Downie now has a pair of golds, the 22-year-old the victor in the uneven bars.
In weightlifting, Canada's George Kobaladze took first place in the men's +105 kilogramme Group A, while Canada's Tamerlan Tagziev and India's Yogeshwar Dutt were winners of the men's 86kg class and 65kg class respectively in men's wrestling.
There was more wrestling success for Canada in the women's 63kg class for Danielle Lappage, with Babita Kumari the gold medallist for India in the 55kg class.
Malaysia's Ooi Tze Liang was crowned champion in the men's 3m springboard diving final, as Canada's Meaghan Benfeito secured the same honour in the women's 10m platform.
England won the women's triples lawn bowls gold-medal match against Australia, with South Africa beating Wales to earn bronze.