In the 1990s, a typical side in Europe’s five biggest leagues was a different team at home. Take a 38-match season as an illustration. Over its 19 home games it would collect about 33 points. From its 19 away games it would bring back about 19. That is a difference of 14 points, or 0.73 points per match. Using the averages from the five seasons to 2025/26, the same calculation gives about 30 point...