Unable to answer "What’s the name of this place?" for way/564953558 via StreetComplete 53.2:

This is a platform (PT: palanque)
Not a sports centre/complex.

Unable to answer "What’s the surface firmness of this track?" for way/638617025 via StreetComplete 53.2:

Paved, but so old and damaged by plants growing on it that it's full of loose asphalt pebles on top. Doesn't even look like it's paved from a distance

Unable to answer "What kind of building is this?" for way/564953772 via StreetComplete 53.2:

It's a stairwell.

Unable to answer "What kind of building is this?" for way/564953395 via StreetComplete 53.2:

There's nothing here anymore but building foundations behind a fence.

Unable to answer "What kind of building is this?" for way/363049108 via StreetComplete 53.2:

Temporary grandstands.

Unable to answer "What’s the name of this place?" for way/564953537 via StreetComplete 53.2:

This is a small gas/water/electricity terminal of sorts

Unable to answer "What kind of building is this?" for way/363049106 via StreetComplete 53.2:

It's a grandstand (PT: bancada)

Unable to answer "What surface does this piece of road have?" for way/638617026 via StreetComplete 53.2:

Technicaly asphalt, but it's in such bad condition, loose asphalt pebles on top on bad surface, it might aswell be defined as pebles

This is most likely where temporary grandstands are placed.

via StreetComplete 53.2

Unable to answer "What kind of building is this?" for way/564953597 via StreetComplete 53.2:

Same on this side. Might be where temporary grandstands are placed.