Australian Kathryn Mitchell broke the Commonwealth Games and Australian record on her first javelin throw and then promptly broke down when she realised she had won the gold medal.
Her first throw of 68.92m was the longest throw in the world for five years and the best of the night to claim the gold medal.
The 35-year-old started her career at the 2006 Melbourne Commonwealth Games, but this was her first medal. After finishing sixth in Melbourne, fifth at the Delhi 2010 Games and fourth at Glasgow 2014.
"I've started to just look at it like a good throw can come at any time when you've got six throws," Mitchell said.
"I've opened before with my biggest throw, I've also thrown my biggest throw in the last round. I just tried to concentrate on what I was doing in that moment, and I did that on the first throw. I knew the throws were in there if I concentrated on what I was doing."
"The less I focus on results, the more the results come. I tried to put all thought of results out of my mind. I knew I could throw the Australian record eventually, so I just said to myself, 'allow it to come'.
"I need to be relaxed and that is something we can work on when we get to competitions where the girls are throwing the longer distances."
In the battle for the minor medals, Australia's Kelsey-Lee Roberts produced a final-round effort of 63.89m to dislodge South Africa's Sunette Viljoen from silver.
The two-time former champion from South Africa, who hurled a best of 62.08m, had the consolation of becoming the first woman in history to win medals in this event at a fourth successive Commonwealth Games (gold in 2006 and 2010 and silver in 2014) with bronze.
Great Britain v the Netherlands 0-2 (0-4)
China v Australia 0-0