Belgium's 2-1 extra-time victory against the United States completed an unprecedented advance of all group winners at a football World Cup through the round of 16 into the quarter-finals.
Belgium join Argentina, Brazil, Colombia, Costa Rica, France, Germany and the Netherlands in the final eight.
A last-16 round after a group stage was introduced in 1986, following six groups in the first three editions, and eight groups since 1998.
The previous record number of group winners was seven from the 2010 tournament in South Africa.
The Belgium-USA game was also the fifth in the round of 16 in Brazil to head into extra time, tying a record from 1938 when five games in the round were not decided in 90 minutes of regulation as well.
The 1938 tournament, and 1934, were played in a full knockout format, starting with the round of 16.
