Nairobi, on the Sunday night that the second round of group games at this World Cup finished, the cluster of fixtures on the screen had stopped resembling a list and started resembling a verdict. Six matches across the last forty-eight hours, played in stadiums two thousand kilometres apart, in afternoon heat and evening cool, and somewhere in the middle of them the tournament did the thing tournaments do in their second week. It stopped being polite. The opening round of any World Cup is a round of introductions, of teams feeling for the floor under their feet. The second round is where the floor either holds or gives.

It gave for some and held for others, and the cleanest way to read the last two days is not as six results but as a single sorting. On one side, the teams that arrived at their second fixture and looked like they had decided what they were. On the other, the teams still negotiating with themselves in public.

Spain were the loudest answer to the first question. Their 4-0 win over Saudi ArabiaT2 - MercatoWire verified feed was the kind of performance that a side gives when its internal argument is already settled. Mikel Oyarzabal scored twice and Lamine Yamal once, the eighteen-year-old playing the way he has played since he was sixteen, which is to say without the deference his age would license. A fourth goal went in that the verified feed does not attribute to a scorer, and there is something honest about leaving it unnamed, because the fourth goal of a 4-0 is rarely about the man who finishes it. Spain top Group H on four points. They are, by the measure of these two days, the most resolved footballing project at the tournament, the side whose passing model the rest of the field has spent a decade quietly trying to reverse-engineer.

Japan answered the same question in a different accent. Their 4-0 win over TunisiaT2 - MercatoWire verified feed carried Ayase Ueda’s two goals, Daichi Kamada’s one and Junya Ito’s one, and it carried the particular momentum of a national team that has spent fifteen years deciding, deliberately and at institutional level, what kind of football it wants to be known for. The Japanese game has a relationship with its own coaching pipeline that few federations can claim, a chain that runs from school gymnasiums to the J-League to the European clubs that now take Japanese midfielders as a matter of course. Four goals against Tunisia is a scoreline. The thing underneath it is a country that knew what it was building and built it.

Egypt’s evening was less serene and, for that reason, more interesting. Egypt 3-1 New ZealandT2 - MercatoWire verified feed had Mohamed Salah on the scoresheet, alongside Mostafa Zico and Trezeguet, with Finn Surman replying for New Zealand. Salah at this World Cup is carrying a thing that Yamal is not yet old enough to carry and that Ueda will probably never carry, which is the weight of being, for a generation of supporters from Cairo to the working-class neighbourhoods of the Nile Delta, the single most legible argument that an African footballer can stand at the absolute centre of the world game. Egypt found form on Sunday. They also found, in the New Zealand goal, the reminder that finding form is not the same as being safe.

So much for the teams that held. The more human story of these two days belongs to the ones that wobbled.

Uruguay 2-2 Cape VerdeT2 - MercatoWire verified feed is the result that will be read two ways depending on where you watched it. Maxi Araujo and Agustin Canobbio scored for Uruguay; Helio Varela and Kevin Pina scored for Cape Verde, an archipelago of half a million people whose presence at a World Cup is itself a statement about how the geography of the game has loosened. Uruguay are a football culture that has spent a century insisting, with some justification, that size is not destiny. On Sunday they met a smaller nation that has begun making the same argument, and the draw belonged more comfortably to Cape Verde than to the two-time world champions. A point dropped by Uruguay is a point that tells you the floor is not quite holding.

Belgium 0-0 IranT2 - MercatoWire verified feed was the quietest evidence of the same thing. A goalless draw is the World Cup’s most ambiguous document, and this one read as a Belgian side still working out who it is in the post-golden-generation years, against an Iranian team whose defensive organisation is the product of a footballing tradition that has never had the resources to be anything other than disciplined. Ecuador and Curacao also drew 0-0, two more nil-nils on a weekend that produced both four-goal statements and stalemates within hours of each other, which is the texture a World Cup acquires once the first round of politeness is spent.

The marquee results of the preceding day frame the sorting more sharply still. Netherlands 5-1 SwedenT2 - MercatoWire verified feed, Cody Gakpo and Brian Brobbey with two apiece and Crysencio Summerville one, Anthony Elanga’s goal the only Swedish reply, was the weekend’s most violent expression of a team that has decided what it is against one that has not. The Dutch top Group F on four points. Germany 2-1 Ivory CoastT2 - MercatoWire verified feed, Deniz Undav twice against Franck Kessie’s reply, was a narrower version of the same resolution. Paraguay 1-0 TurkiyeT2 - MercatoWire verified feed, Matias Galarza the scorer, was the round’s compression into a single goal.

The standings after two rounds tell their own quiet story. Spain on four at the top of Group H, Netherlands on four in Group F, Brazil on four in Group C, and Mexico, the host nation playing in front of crowds that have turned the group stage into a procession, the only side in the field on a perfect six.T2 - MercatoWire verified feed Mexico’s six is its own anthropological fact, a host country pulling form out of the atmosphere of being at home, but that is a story for the city it is being made in, and I was not in it this weekend.

What this weekend told us, watched from a long way away, is the thing the second round of a World Cup always tells us, which is that a tournament is not a competition between flags but a competition between degrees of self-knowledge. Spain and Japan and the Netherlands knew themselves. Uruguay and Belgium are still asking. The group stage stopped being polite not because anyone became cruel, but because the teams that had answered the question began, without apology, to act on the answer. The ones still asking now have one round left in which to find it.