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 21 of 2023-24.

With 54 points, they were 2 ahead of Juventus. Nothing was decided mathematically on this matchday.

Results

Date	Home	Score	Away
20 Jan	Roma	2–1	Verona
20 Jan	Udinese	2–3	AC Milan
21 Jan	Frosinone	3–1	Cagliari
21 Jan	Empoli	3–0	Monza
21 Jan	Salernitana	1–2	Genoa
21 Jan	Lecce	0–3	Juventus
14 Feb	Bologna	2–0	Fiorentina
22 Feb	Torino	0–2	Lazio
28 Feb	Sassuolo	1–6	Napoli
28 Feb	Inter	4–0	Atalanta

Table after matchday 21

Pos.	Team	Played	Goal diff.	Points	Max.	Title
1	Inter	21	+43	54	105	In it
2	Juventus	21	+23	52	103	In it
3	AC Milan	21	+18	45	96	In it
4	Lazio	21	+6	36	87	In it
5	Bologna	21	+7	35	86	In it
6	Napoli	21	+10	34	85	In it
7	Fiorentina	21	+6	34	85	In it
8	Atalanta	21	+10	33	84	In it
9	Roma	21	+9	32	83	In it
10	Torino	21	-2	28	79	In it
11	Genoa	21	-3	25	76	In it
12	Monza	21	-8	25	76	In it
13	Frosinone	21	-12	22	73	In it
14	Lecce	21	-9	21	72	In it
15	Sassuolo	21	-15	19	70	In it
16	Udinese	21	-12	18	69	In it
17	Cagliari	21	-16	18	69	In it
18	Verona	21	-10	17	68	In it
19	Empoli	21	-21	16	67	In it
20	Salernitana	21	-24	12	63	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 21 of 2023-24?: Inter led Serie A after matchday 21 of 2023-24. With 54 points, they were 2 ahead of Juventus.
What was decided on matchday 21 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.