Complex sentence: The most stadiums used in a single tournament was in 2000 when an incredible 26 different stadiums were used; the overall stadium capacity was the highest ever at 704,400 however the occupancy was also the lowest ever at just 37.46%.
Split into simpler sentences: The most stadiums used in a single tournament was in 2000 when 26 different stadiums were used; the overall stadium capacity was the highest ever at 704,400. However, the occupancy was also the lowest ever at just 37.46%.