Thank you for the clarification.
You're right, it's definitely U-20 instead of U20. I'm fairly certain it should be U-20 instead of U-18 though, as the Tsubasa fandom wiki states this is the U-20 tournament: https://captaintsubasa.fandom.com/wiki/Battle_of_World_Youth
(Scroll down to Epilogue)https://captaintsubasa.fandom.com/wiki/Captain_Tsubasa_(Tecmo_game_series
) (Scroll down to History and read about this game to re-confirm that it's the same story arc, therefore U-20)
The Cutscene 13, Line 12 text seems to be somewhat mistranslated. The Japanese text mentions 18, but I don't think it says it's a tournament for strictly 18 years old. Either way, that conflicts with the story arc in the anime, which the game is based on. And it conflicts with real life, as there are no such FIFA tournaments. 18 year old players can play in a U-20 team though, the only requirement is that you're under 20. I changed my suggestion slightly to reflect what the Tsubasa fandom wiki seems to support, that this is the U-20 World Cup.
I strongly suggest we use Quarterfinal instead of 1/4 though, as that is very common 😄
Asian Qualifiers (and all WC Qualifiers in real life) are usually played as normal league games, meaning no elimination. It should just be 1st Round, 2nd Round, 3rd Round. Whichever team has the most points at the end of all rounds wins the league. Buuut, it could be that the game makes every game an elimination game for excitement's sake? If the game forces you to replay the match again if you lose, then it should be treated as elimination: 1/64, 1/32, 1/16, 1/8, Quarterfinal and so on.
The reason I added U-20 to most conversation, was to differentiate between this and the later games, when I think he actually goes to the real World Cup for senior teams. But I have now removed most of my suggestions where I used U-20 in conversations. Except for a few places where I found it suitable.
I don't think we can call the first three rounds of the Rio Cup the Rio Cup Qualifiers, since the Rio Cup has already begun. This is the Rio Cup.
But we can use 1st Round/2nd Round/3rd Round or 1/32-final / 1/16-final / 1/8-final, and then move onto Quarterfinal.
I also suggest not using the FC after Sao Paulo, since then all teams should have their full names as well. Just simply Sao Paulo should do. We hardly ever call Manchester United for Manchester United FC. There are exceptions, however. Like Hamburger SV. It's common to include the SV in their name.
Here are updated suggestions that should fit better:Rio Cup:
1/32-final OR 1st Round: Sao Paulo VS Fluminense
1/16-final OR 2nd Round: Sao Paulo VS Corinthians
1/8-final OR 3rd Round: Sao Paulo VS Gremio
Quarterfinal: Sao Paulo VS Palmerias
Semifinal: Sao Paulo VS Santos
Final: Sao Paulo VS FlamengoNational Championships:
Group Stage, 1st Round: Nankatsu Public High VS Kunimi Academy
Group Stage, 2nd Round: Nankatsu Public High VS Akita Commercial School
Group Stage, 3rd Round: Nankatsu Public High VS Tatsunami High
Group Stage, 4th Round: Nankatsu Public High VS Musashi Medical School
Semifinal: Nankatsu Public High VS Furano Public High
Final: Nankatsu Public High VS Toho AcademyJapan Cup:
1/8-final: Sao Paulo VS AS Roma
Quarterfinal: Sao Paulo VS Uruguay
Semifinal: Sao Paulo VS Hamburger SV
Final: Sao Paulo VS JapanU-20 World Cup, Asian Qualifiers:
1st Round: Japan VS Syria
2nd Round: Japan VS China
3rd Round: Japan VS Iran
4th Round: Japan VS North Korea
5th Round: Japan VS Saudi Arabia
6th Round: Japan VS South KoreaFriendlies:
1st match: Japan VS Vasco da Gama
2nd match: Japan VS Poland
3rd match: Japan VS England
4th match: Japan VS Soviet Union
5th match: Japan VS FranceU-20 World Cup:
Group Stage, 1st Round: Japan VS Mexico
Group Stage, 2nd Round: Japan VS Italy
Group Stage, 3rd Round: Japan VS Holland
Quarterfinal: Japan VS Argentina
Semifinal: Japan VS West Germany
Final: Japan VS Brazil