"We have led this championship this year. We are a fair bit behind now through a great run from car #17. Anyone can get on a good run and score some points.
"We will keep our head down and do the best we can."
Whincup celebrates his 450th race start in the Northern Territory and admits he has limited time left at the peak of his powers.
No-one has won more Supercars races than Whincup but he has consistently said he won't race forever.
"I still have plenty of left me in life in general but motorsport – I don't want to go past my used by date," Whincup said. "My days are numbered.
"I still feel like I am at my peak though but I want to go out at my peak as well though.
"I will keep my head down. I am not sure how many more [seasons] I have got left. I won't be Craig Lowndes going until I am 40.
"I am certainly enjoying it as much as I have ever done. I feel like I am as competitive as I've ever been."