Some matches have already concluded, and the results aren't particularly surprising at least not in the case of the Palmeiras vs São Paulo game. Here are the results from a few matches:
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You forgot about the Internacional, they won one... that is a reason to celebrate, its not every week that something like this happen

Now they have São Paulo, Corinthians and Grêmio ahead of them, do you think they have enough confidence to keep winning and get out of the relegation zone!? Honestly, I doubt it.... against Grêmio they probably will lose, I do not even remember the last time of my team won a Grenal, but if they beat Corinthians I will already be super happy

Internacional lost their match against São Paulo, neither team seemed to show much intensity and the game lacked the high tempo that usually comes with an early push for a goal and a win. The few quality chances that did arise included the penalty São Paulo converted, had the teams capitalized on those few opportunities, we would have seen at least two goals. With this defeat, Internacional remains in the relegation zone. They really ought to start worrying, though there are 10 rounds left, and every loss from here on out will only make their situation worse.
Paulo Pezzolano was fired as head coach of Internacional:
Paulo Pezzolano is no longer Internacional manager
source:
https://sports.yahoo.com/articles/paulo-pezzolano-no-longer-internacional-021600695.html
Corinthians 1 - 3 Fluminense
Well, that’s another defeat for Corinthians, with this result, the team has now suffered six consecutive losses. Yes, not just two, three, or four we are talking about six straight defeats. If they lose the next match against Internacional, that will make it seven and considering they play Palmeiras after that, it could reach eight consecutive losses. Yet, even with these six straight defeats, the management decided to stick with the current coach;
executive director Marcelo Paz stated that he supports the work being done by coach Fernando Diniz. I don't know if they fail to see that the club is on a streak of many defeats.
Grêmio 0 - 0 Palmeiras
Most people looking at this match before kickoff likely thought: "
Grêmio is in the relegation zone and has lost three straight games, while Palmeiras is fighting for the title and is unbeaten in their last four so Palmeiras will win " That was probably the prevailing view, but on the pitch, it was a story of squandered opportunities. I don't know what was going on with the Palmeiras players; they kept firing shots straight at the Grêmio goalkeeper and sending headers which should have been easy goals crashing against the crossbar instead and the game ended in a draw, With this draw, Palmeiras has recorded three draws in their last five games. They were dropped points, but I'm happy because this puts Flamengo at the top of the table.
Flamengo 2 - 1 BragantinoIt was a very important victory for Flamengo, who now top the table; they could have kept a clean sheet were it not for that mistake by Bruno Henrique:

Bruno Henrique came on in the 71st minute and by the 86th, he had already scored an own goal, he was supposed to come on to help Flamengo score, not assist the opponent as he did in the incident shown in the photo. I don't know why he positioned himself that way when the Bragantino player took the shot, but the fact remains that he put the ball into his own net. the most important thing is that Flamengo won and moved to the top of the table. It isn't a huge lead over Palmeiras a three point advantage isn't much so they need to maintain a consistent winning run and avoid errors like the one Bruno Henrique made.