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And that is it.
There is no room for doubt or anything else that might cloud her mind.
The 23-year-old has a single focus and a grand plan. If she can win the next two races in Italy this weekend, she will return home with the title for the second year running.
Getting to that first corner with the field all behind her will greatly enhance her prospects.
Last season went smoothly but there have been some bumps this year.
Covid-19 has been the biggest hurdle, but last month Duncan crashed out in race two in Mantova and had to ride well to get back into contention for the series title.
She has also been adjusting to a new bike model. But the four-week break between round four and round five has enabled Duncan to get more comfortable on her Kawasaki KX250.
"The body’s good, the bike’s good, I’m excited — let’s go have some fun," she told the Otago Daily Times.
"We are all very close on points, so it is pretty much down to winner takes all.
"That is a huge opportunity there for me, so I’m excited to see how I’m going to handle it and to be tested in those situations.
"We’re ready to flick the switch and go to battle."
Dutch rider Nancy van de Ven leads the series on 166 points.
Duncan is tucked in behind on 162 points, while German rider Larissa Papenmeier (160 points) and six-time winner Kiara Fontanesi, of Italy, are both well within striking distance on 156 points.
With a maximum of 50 points on offer, the series is still wide open.
Duncan was nursing a healthy advantage in the series before her crash.
"It was just one of those freak things. I’ve watched the footage over and over to see what happened and it was just one of those things that happened and resulted in a DNF which we didn’t want.
"But they are the cards you are dealt sometimes.
"I feel like I handled the situation pretty well and, to be honest, I have not thought of it again.
"I’m just excited I still have an opportunity to go for this championship."
As for her new model Kawasaki, Duncan acknowledged she had underestimated how long it would take to adjust.
But she has had another month on the bike and she is hoping that will translate into faster lap times and a couple of wins.