The 1921 International Lawn Tennis Challenge was the 16th edition of what is now known as the Davis Cup. In the playoff finals, newcomers Japan surprised Australasia 4–1, but would fall to defending champions the United States in the Challenge Round. The final was played 2–5 September at the West Side Tennis Club in New York City.
The 1922 International Lawn Tennis Challenge was the 17th edition of what is now known as the Davis Cup. The tournament saw first-time entries from Italy and Romania. Australasia would storm through the preliminary round, but would fall to defending champions the United States in the challenge round. The final was played at the West Side Tennis Club in New York City, United States on 1–5 September.
The 1924 International Lawn Tennis Challenge was the 19th edition of what is now known as the Davis Cup. The tournament was, for the second straight year, divided into the America and Europe Zones. 17 teams competed in the Europe Zone, and 6 in America. China, Cuba, Hungary, Mexico, and New Zealand all competed for the first time, and South Africa and Austria returned to create the largest field to date.
The 1925 International Lawn Tennis Challenge was the 20th edition of what is now known as the Davis Cup. Sixteen teams would enter the Europe Zone, while 9 would enter the America Zone. Portugal, Poland and Sweden competed for the first time.
The 1926 International Lawn Tennis Challenge was the 21st edition of what is now known as the Davis Cup. 19 teams would enter the Europe Zone, while 5 would enter the America Zone.
The 1930 International Lawn Tennis Challenge was the 25th edition of what is now known as the Davis Cup. For the silver anniversary, 24 teams would enter the Europe Zone, while 4 would enter the America Zone.
The 1931 International Lawn Tennis Challenge was the 26th edition of what is now known as the Davis Cup.
The 1932 International Lawn Tennis Challenge was the 27th edition of what is now known as the Davis Cup. 22 teams would enter the Europe Zone; while 8 would enter the Americas Zone, 5 in North America and 3 in South America.
The 1934 International Lawn Tennis Challenge was the 29th edition of what is now known as the Davis Cup. 10 teams would enter the Europe Zone, while only 5 would enter the Americas Zone, 3 in North America and 2 in South America. Due to the large number of entries in Europe, a "Qualifying Round" system was introduced in order to better manage the number of teams competing. European teams which lost before the 1933 Europe Zone semifinals would play-off against each other for four spots in the 1934 Europe Zone main draw.
The 1935 International Lawn Tennis Challenge was the 30th edition of what is now known as the Davis Cup. Due to increased political tensions in Europe, entries for the Europe Zone declined sharply, causing the qualifying round system to be scrapped. Only 11 teams would enter the Europe Zone, with 17 teams entering the qualifying rounds; while six would enter the Americas Zone, 4 in North America and 2 in South America. Estonia entered the tournament for the first time.
The 1937 International Lawn Tennis Challenge was the 32nd edition of what is now known as the Davis Cup. 20 teams entered the Europe Zone, while 4 teams entered the Americas Zone.
The 1939 International Lawn Tennis Challenge was the 34th edition of what is now known as the Davis Cup. 20 teams entered the Europe Zone, while 7 entered the America Zone.
The 1948 Davis Cup was the 37th edition of the most important tournament between national teams in men's tennis. 25 teams entered the Europe Zone, and four teams entered the America Zone. Pakistan and Turkey made their first appearances in the competition.
The 1949 Davis Cup was the 38th edition of the most important tournament between national teams in men's tennis. 24 teams would enter the Europe Zone, and 4 teams would enter the America Zone. Israel made its first appearance in the competition.
The 1955 Davis Cup was the 44th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 24 teams entered the Europe Zone, 7 teams entered the America Zone, and 3 teams entered the newly reinstated Eastern Zone. Burma competed for the first time.
The 1961 Davis Cup was the 50th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 28 teams entered the Europe Zone, 7 teams entered the Americas Zone, and 7 teams entered the Eastern Zone. Ecuador, Indonesia and Morocco made their first appearances in the tournament.
The 1971 Davis Cup was the 60th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 28 teams entered the Europe Zone, 13 teams entered the Americas Zone, and 9 teams entered the Eastern Zone. Bolivia made its first appearance in the tournament.
The 1972 Davis Cup was the 61st edition of the Davis Cup, the most important tournament between national teams in men's tennis. 55 teams would enter the competition, 33 in the Europe Zone, 11 in the Americas Zone, and 11 in the Eastern Zone.
The 1979 Davis Cup was the 68th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 52 teams would enter the competition, 29 in the Europe Zone, 13 in the Americas Zone, and 10 in the Eastern Zone.
The 1980 Davis Cup was the 69th edition of the Davis Cup, the most important tournament between national teams in men's tennis. 52 teams would enter the competition, 30 in the Europe Zone, 12 in the Americas Zone, and 10 in the Eastern Zone.
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