Denmark lit up Euro 2020 on Monday as they thumped Russia 4-1 to finish second in Group B and progress to the last 16.
Belgium ran out winners in that group after a 2-0 win over Finland, with Markku Kanerva's side finishing third by virtue of an inferior goal difference to Denmark.
In Group C, the Netherlands sealed top spot with a 3-0 victory against rock-bottom North Macedonia, with Austria joining them in the knockout stages after overcoming Ukraine, who finished third.
Using Opta data, Stats Perform takes a look at some of the best facts from Monday's games.
Russia 1-4 Denmark: Hjulmand's side progress in spectacular fashion
Denmark produced one of the standout displays of the tournament so far to set up a last-16 clash with Wales in Amsterdam on Saturday.
The sensational win meant Denmark became the first team in European Championship history to reach the knockout stages of the competition having lost their first two group-stage games.
It also marked the first time Denmark had scored four goals in a major tournament game since a 4-1 victory over Nigeria at the 1998 World Cup.
Mikkel Damsgaard put Denmark ahead shortly before the interval to become his country's youngest ever goalscorer at a major tournament, with the forward also the first player born in the 2000s to score in the European Championship.
Yussuf Poulsen added a second, the RB Leipzig man netting in consecutive games for Denmark for only the second time, also doing so in June 2018 against Mexico in a friendly and Peru at the World Cup.
Artem Dzyuba then scored his 30th international goal to move level with Aleksandr Kerzhakov as the all-time joint top-scorer for Russia – since the dissolution of the Soviet Union (USSR), but Andreas Christensen and Joakim Maehle wrapped up a memorable win for Kasper Hjulmand's side.
Finland 0-2 Belgium: Martinez's Red Devils march on in style
This latest victory means Belgium have won all three group games at back-to-back major tournaments, while it is the first time they have won all of their group fixtures at a single European Championship tournament.
Belgium went ahead in the 74th minute when Thomas Vermaelen's header from a corner bounced up onto the post and went in off the unfortunate Lukas Hradecky's hand.
Hradecky became just the second goalkeeper in European Championship history to score an own goal after Wojciech Szczesny for Poland against Slovakia earlier in the tournament.
Belgium's Romelu Lukaku then netted his third goal of the tournament seven minutes later.
Since making his major international tournament debut for Belgium in 2014, the Inter forward has scored 10 goals in such competitions – only Portugal superstar Cristiano Ronaldo and France's Antoine Griezmann have scored more major tournament goals for a European nation during this period (11 each).
Belgium's Jeremy Doku (19 years and 25 days), meanwhile, became the second youngest player to appear for the nation at a European Championship tournament after Enzo Scifo (18 years and 115 days).
North Macedonia 0-3 Netherlands: Oranje make history in third consecutive win
Memphis Depay and Georginio Wijnaldum starred as the Netherlands won all three of their group-stage games at the European Championship for the third time (also 2000 and 2008) – more than any other side in the competition.
Their latest win meant the Oranje have scored two goals in 10 successive games for the first time ever, while they now have 65 goals at the European Championship finals, leapfrogging France into second place to sit behind only Germany (76) in the competition's history.
Barcelona-bound Depay got the Netherlands on their way with his 50th goal involvement in 67 appearances for the national team (28 goals and 22 assists). He has now been involved in 13 goals in his last 10 games for the Oranje in all competitions (nine goals and four assists).
In his 78th appearance for the Netherlands, Paris Saint-Germain recruit Wijnaldum scored his 24th and 25th goals. Fifteen of these strikes have been in his 25 games since the start of 2019, with no player scoring more for the Dutch during this time.
North Macedonia, meanwhile, are just the fourth team to lose 100 per cent of their matches at their first appearance in the European Championships, after Turkey in 1996, Denmark in 1964 and France in 1960.
Ukraine 0-1 Austria: Baumgartner seals last-16 spot
This win meant Austria progressed to the knockout stages of a European Championship for the first time in their history.
They were in dominant mood against their meek opponents, taking 18 shots – a tally they have only bettered twice before in a European Championship game (23 against Iceland in 2016 and 20 against Croatia in 2008).
Austria only found the back of the net once, though, Christoph Baumgartner becoming the youngest player ever to score for the nation at the European Championship, aged 21 years and 324 days.
He was teed up by Real Madrid's David Alaba, who registered his third assist in six appearances for Austria in the competition – two more than any other Austrian.
Ukraine, meanwhile, have failed to keep a clean sheet in any of their nine games at the European Championship – the most matches played in the competition by a team without having their defence breached.