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.

Paris Saint-Germain led Ligue 1 after matchday 13 of 2023-24.

With 30 points, they were 1 ahead of Nice. Nothing was decided mathematically on this matchday.

Results

Date	Home	Score	Away
24 Nov	Paris Saint-Germain	5–2	Monaco
25 Nov	Clermont Foot	0–3	Lens
25 Nov	Strasbourg	1–1	Marseille
26 Nov	Nice	1–0	Toulouse
26 Nov	Lorient	2–3	FC Metz
26 Nov	Nantes	0–0	Le Havre
26 Nov	Montpellier	1–3	Brest
26 Nov	Rennes	3–1	Stade de Reims
26 Nov	Lyon	0–2	Lille

Table after matchday 13

Pos.	Team	Played	Goal diff.	Points	Max.	Title
1	Paris Saint-Germain	13	+23	30	93	In it
2	Nice	13	+10	29	92	In it
3	Monaco	13	+8	24	87	In it
4	Lille	13	+6	23	86	In it
5	Stade de Reims	13	+0	20	83	In it
6	Lens	13	+3	19	82	In it
7	Brest	13	+0	19	82	In it
8	Marseille	13	+2	17	80	In it
9	Le Havre	13	-1	16	79	In it
10	FC Metz	13	-5	16	79	In it
11	Rennes	13	+2	15	78	In it
12	Nantes	13	-6	15	78	In it
13	Montpellier	13	-1	14	77	In it
14	Strasbourg	13	-6	14	77	In it
15	Toulouse	13	-4	12	75	In it
16	Lorient	13	-7	11	74	In it
17	Clermont Foot	13	-9	10	73	In it
18	Lyon	13	-15	7	70	In it

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

Matchdays

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Quick answers

Who was top of Ligue 1 after matchday 13 of 2023-24?: Paris Saint-Germain led Ligue 1 after matchday 13 of 2023-24. With 30 points, they were 1 ahead of Nice.
What was decided on matchday 13 of the 2023-24 Ligue 1?: 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.