Compatriot Claire Tallent was leading the race by 10 metres with 2km remaining when she was issued with a third and final red card by a judge for ‘lifting’. Montag, who was competing in only her third 20km race, took full advantage, crossing the line in 1:32:50.

Montag, 20, remarked: "The race, being in Australia with my friends and family on the sidelines, it didn’t even feel like I was racing. I was being pushed along by their support.”

Commenting on the incident that saw Tallent disqualified, Montag said: "You don't want it to happen to anyone, but to another Aussie is heartbreaking.

“I really thought we'd be able to push each other through to a fast time in the last few laps. I definitely wanted her with me to the end.”

Tallent had collapsed to her knees sobbing upon being disqualified, but she composed herself when interviewed, and said: “All credit to Jemima. She was the best on the day.

“She's a great, great girl and she's got such a big future in front of her and I know she is going to represent Australia with pride for many, many years to come.

“And good on her, first crack at the Commonwealth Games and she walks away with the gold medal I couldn't be more happier, more thrilled for her. She's a great girl, truly well deserved."

Steve Solomon placed seventh in the 400m final, recording 45.64 on Tuesday.