Zurich - Belgium reached a best-ever sixth place in the Fifa rankings on Thursday while Japan, Asia's highest-placed team, dropped five positions to a modest 42nd.
The standings continued to make embarrassing reading for the Asian Football Confederation (AFC) with Iran (48) their only other team in the top 50.
Belgium have dropped only two points in eight games in their World Cup qualifying competition and continued their run with a 2-0 win in Scotland on Friday.
South American champions Uruguay leapt into the top 10 with two crucial World Cup qualifying wins, 2-1 away to Peru and 2-0 at home to Colombia.
They are among four South American teams in the top 10 alongside second-placed Argentina, Colombia (5th) and 2014 World Cup hosts Brazil, who climbed one place to eighth.
World and European champions Spain remained top and Germany dropped one point to third despite 3-0 wins over Austria and Faroe Islands in the last week.
1. (1) Spain
2. (4) Argentina
3. (2) Germany
4. (6) Italy
5. (3) Colombia
6. (10) Belgium
7. (12) Uruguay
8. (9) Brazil
9. (5) Netherlands
10. (8) Croatia – Reuters