A solitary point against Charlton tonight will be sufficient to guide Cardiff back to the top flight after a 51-year-absence.
The Bluebirds' 3-0 victory over Nottingham Forest on Saturday coupled with Watford's defeat at Peterborough sent the npower Championship leaders 12 points clear of the third-placed Hornets with four games left.
All they need to do is avoid defeat tonight and they will book a spot in the Barclays Premier League.
The fans are clearly confident, with all season tickets for next year sold out, but they face an in-form Charlton side who shocked Barnsley with a 6-0 victory at Oakwell last time out.
For Cardiff manager Malky Mackay, it would be a huge achievement and provide him with a test of his own skills.
In quotes given to Wales Online, Mackay said: "It would be huge.
"I came to South Wales and took a new job with a new team and had new people around me.
"It has been a great experience and it will be something we really enjoy and are proud of.
"Personally, I want to manage at the best level I can and manage against the best out there and the Premier League is the place to do that."
The Addicks have moved up to ninth in the table but, given they are six points outside the play-offs, it appears to be too late for a push for the top six.
Manager Chris Powell told CAFC Player: "We've had a few down days this year but our recent form and where we are at at the moment shows exactly what this group of of players is capable of."