How is this calculated?

A team is counted as still in it for a given target (the title, a top place, staying up) when at least one set of results for the matches left would get 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.

Fluminense led the Brasileirão after matchday 2 of 2023.

They were level on 6 points with Botafogo. Nothing was decided mathematically on this matchday.

Results

Date	Home	Score	Away
22 Apr	Fluminense	2–0	Athletico Paranaense
22 Apr	Cuiabá	1–1	Red Bull Bragantino
22 Apr	São Paulo	3–0	América Mineiro
23 Apr	Cruzeiro	1–0	Grêmio
23 Apr	Internacional	2–1	Flamengo
23 Apr	Santos	0–0	Atlético Mineiro
23 Apr	Vasco da Gama	2–2	Palmeiras
23 Apr	Coritiba	0–3	Fortaleza
23 Apr	Goiás	3–1	Corinthians
24 Apr	Bahia	1–2	Botafogo

Table after matchday 2

Pos.	Team	Played	Goal diff.	Points	Max.	Title
1	Fluminense	2	+5	6	114	In it
2	Botafogo	2	+2	6	114	In it
3	Fortaleza	2	+3	4	112	In it
4	Palmeiras	2	+1	4	112	In it
5	Vasco da Gama	2	+1	4	112	In it
6	Internacional	2	+1	4	112	In it
7	Red Bull Bragantino	2	+1	4	112	In it
8	Flamengo	2	+2	3	111	In it
9	São Paulo	2	+2	3	111	In it
10	Goiás	2	+0	3	111	In it
11	Athletico Paranaense	2	+0	3	111	In it
12	Cruzeiro	2	+0	3	111	In it
13	Grêmio	2	+0	3	111	In it
14	Corinthians	2	-1	3	111	In it
15	Cuiabá	2	-1	1	109	In it
16	Atlético Mineiro	2	-1	1	109	In it
17	Santos	2	-1	1	109	In it
18	Bahia	2	-2	0	108	In it
19	América Mineiro	2	-6	0	108	In it
20	Coritiba	2	-6	0	108	In it

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

Matchdays

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Quick answers

Who was top of the Brasileirão after matchday 2 of 2023?: Fluminense led the Brasileirão after matchday 2 of 2023. They were level on 6 points with Botafogo.
What was decided on matchday 2 of the 2023 Brasileirão?: Nothing was decided mathematically on this matchday.
How is this calculated?: A team is counted as still in it for a given target (the title, a top place, staying up) when at least one set of results for the matches left would get 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.