Algunas efemerides:
Argentina were trailing 2-1 in matches and 2-0 in sets in the fourth match. They became the first nation to win the final with such a deficit.
On two occasions in the final a team was trailing 2-1 in matches and 2-0 in sets in the fourth match and turned the score into 2-2. But USA (in 1908) and Sweden (in 1996) eventually lost the fifth match, unlike Argentina today.
Argentina became the 15th nation to win the Davis Cup and the first from South America. Argentina lost the final in 1981, 2006, 2008 and 2011.
In only six of the 45 Davis Cup finals since 1972 has the loser of the doubles rubber managed to win the title: Australia in 1977, Russia in 2002, Spain in 2004 and 2011, Serbia in 2010 and now Argentina.
It is the seventh time that a team has managed to win the Davis Cup after trailing 2-1 in the final.
Argentina are still undefeated against Croatia in the Davis Cup: three quarterfinals (2002, 2006, 2012) and one final (2016).
Since the introduction of the World Group in 1981, there have only been two nations that played all four ties away and won the Davis Cup: France in 2001 and Argentina in 2016.
This is the first time that Argentina have won four successive Davis Cup ties since 2000-2002 (six wins).
Argentina is the first Davis Cup champion without a player in the Top 20 (in the final) since Sweden in 1998.
It is the second time that Del Potro has beaten Karlovic and Cilic in the same Davis Cup tournament: 2012 (quarterfinal) and 2016 (final). In 2012, he beat them both in straight sets. This time, in four (Karlovic) and five (Cilic) sets.
Del Potro won his first match after having lost the first two sets, when he defeated Cilic in the fourth rubber. He had gone on to lose the first 14 matches in which he had lost the first two sets.
Delbonis is the first player born in 1989 or later to win a singles' match for the winning team.