How is this calculated?

A team is counted as still in it when at least one set of results for the matches left would put it there, taking into account that its rivals also play each other. It is counted as sure only when no set of results can take it away. Teams level on points are treated cautiously while matches remain: level is enough to stay in, never enough to be sure, because goal difference and the other tie-breaks are only applied once the season is over. Points deductions are included as published in the league table.

Inter led Serie A after matchday 4 of 2023-24.

With 12 points, they were 2 ahead of Juventus. Nothing was decided mathematically on this matchday.

Results

Date	Home	Score	Away
16 Sep	Juventus	3–1	Lazio
16 Sep	Inter	5–1	AC Milan
16 Sep	Genoa	2–2	Napoli
17 Sep	Cagliari	0–0	Udinese
17 Sep	Frosinone	4–2	Sassuolo
17 Sep	Monza	1–1	Lecce
17 Sep	Fiorentina	3–2	Atalanta
17 Sep	Roma	7–0	Empoli
18 Sep	Salernitana	0–3	Torino
18 Sep	Verona	0–0	Bologna

Table after matchday 4

Pos.	Team	Played	Goal diff.	Points	Max.	Title
1	Inter	4	+12	12	114	In it
2	Juventus	4	+7	10	112	In it
3	AC Milan	4	+2	9	111	In it
4	Lecce	4	+3	8	110	In it
5	Napoli	4	+3	7	109	In it
6	Frosinone	4	+1	7	109	In it
7	Torino	4	+1	7	109	In it
8	Fiorentina	4	+0	7	109	In it
9	Verona	4	+0	7	109	In it
10	Atalanta	4	+3	6	108	In it
11	Bologna	4	-1	5	107	In it
12	Roma	4	+5	4	106	In it
13	Genoa	4	-3	4	106	In it
14	Monza	4	-3	4	106	In it
15	Lazio	4	-3	3	105	In it
16	Udinese	4	-3	3	105	In it
17	Sassuolo	4	-4	3	105	In it
18	Cagliari	4	-3	2	104	In it
19	Salernitana	4	-5	2	104	In it
20	Empoli	4	-12	0	102	In it

Max.: the most points the team can still finish on.

Matchdays

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Quick answers

Who was top of Serie A after matchday 4 of 2023-24?: Inter led Serie A after matchday 4 of 2023-24. With 12 points, they were 2 ahead of Juventus.
What was decided on matchday 4 of the 2023-24 Serie A?: Nothing was decided mathematically on this matchday.
How is this calculated?: A team is counted as still in it when at least one set of results for the matches left would put it there, taking into account that its rivals also play each other. It is counted as sure only when no set of results can take it away. Teams level on points are treated cautiously while matches remain: level is enough to stay in, never enough to be sure, because goal difference and the other tie-breaks are only applied once the season is over. Points deductions are included as published in the league table.