Qualifiers Reset

I have had Halo 5 about a week and went through all qualifiers in a few Arena playlists and now they are reset. Why did this happen?

I believe they reset every month.

Every month is a season, new month you have to qualify over again.

my player ranking was a gold 5 now it says i need to play 10 more matches to rank

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> my player ranking was a gold 5 now it says i need to play 10 more matches to rank

You have to requalify every month.