More than 10,000 people have watched the Warriors’ thrilling 20-18 win over the Wests Tigers at the MCG.
It is the first time the AFL has beaten the West and the first loss for the club since the 2009 Grand Final, which saw the Tigers clinch the premiership with a win over Hawthorn.
The Cats are also in second place with a 19-16 win over Fremantle.
The Demons and Tigers are in third and fourth places, while Collingwood is in fifth.
The Wests win comes after a poor start to the season for the Tigers, who were knocked out of the top eight in round three.
They were dropped by the Bulldogs in round nine.
They were the only team to miss out on the grand final and are now one win away from clinching a top-four spot.
A strong run of form led to the Tigers taking five wins from their first eight games.
The Cats’ win comes in front of a crowd of 25,936, which is the highest attendance in the club’s history.
It is the third straight win for Melbourne over the Tigers and the seventh for the team.
Melbourne had won their first three matches, including a 30-10 loss to the Bulldogs at the Gabba in round four.
But the Tigers held their nerve and were in control until the final quarter.
The Demons were in the ascendancy early in the match.
Alex Fasolo kicked two goals, Nathan Jones added a goal and Ryan Griffen kicked two majors.
Alex Rance kicked two more majors.
David Mundy kicked two major majors.
Andrew Mackie kicked two grand finals and Daniel Rioli kicked a third.
Josh Caddy kicked a final.
The Tigers, led by David Mundy, went into the game as the favourites.
They were able to dictate the contest and it was the Cats who looked the most dangerous on the ground.
It wasn’t until the 18th minute when the Tigers looked to take the game to the Demons.
They kicked two of the three majors to make it 18-17.
However, it was all downhill from there.
They lost three of four possessions to a West Coast onslaught, but a poor first half from the Tigers saw them drop to a disappointing 34.3 per cent mark.
Melbournians, meanwhile, are looking forward to the first big test of the season.