How is the Italian first division champion determined?

Look at the points first, and the highest point is the champion.

Same integral:

1) If the points of the two teams are the same, compare the confrontation records, goal difference, goals, total goal difference and total goals of the two teams in turn. If they are all the same, draw lots to decide;

2) If multiple teams have the same points, compare the sum of points, goal difference and goal between these teams in turn, and then compare the total goal difference and goal. If it's all the same, draw lots.

In the final round, if Inter draw, Rome wins and Rome wins.

2009- 1 1-9 Inter Milan 1: 1 Rome

20 10-3-28 Rome 2: 1 Inter Milan