The 2020 Davis Cup World Group I was held on 5–6 March 2021 and 17–19 September 2021. The eight highest-ranked winners of the World Group I ties automatically progressed to the 2022 Davis Cup qualifying round. The four lowest-ranked winners took part in an additional knock-out tie in November 2021, the two winners progressing to the 2022 Davis Cup qualifying round and the two losers contesting the 2022 Davis Cup World Group I play-offs. The losing nations from the World Group I ties will compete in the 2022 Davis Cup World Group I play-offs.^[1]

Teams

Twenty-four teams participated in the World Group I, in a series decided on a home and away basis. The seedings are based on the nations ranking of 9 March.^[2]

These twenty-four teams were:

• 12 losing teams from the qualifying round
• 12 winning teams from World Group I play-offs

The eight highest-ranked (as at 20 September 2021) winners of the World Group I ties automatically progressed to the 2022 qualifiers. The four lowest-ranked winners took part in an additional knock-out tie in November 2021, with the two winners progressing to the 2022 qualifiers and two losers contesting the 2022 World Group I play-offs. The losing nations from the World Group I ties will compete in the World Group I play-offs in 2022.^[3]

#: Nations ranking as of 9 March 2020.^[4]

Results summary

World Group I

Home team	Score	Away team	Location	Venue	Surface
Bolivia	2–3	Belgium [1]	Asunción (Paraguay)	Rakiura Resort	Clay
Argentina [2]	4–1	Belarus	Buenos Aires	Buenos Aires Lawn Tennis Club	Clay
Pakistan	0–4	Japan [3]	Islamabad	Pakistan Sports Complex	Grass
Uruguay	0–4	Netherlands [4]	Montevideo	Carrasco Lawn Tenis Club	Clay
Slovakia	3–1	Chile [5]	Bratislava	NTC Arena	Hard (i)
Finland	3–1	India [6]	Espoo	Espoo Metro Areena	Hard (i)
Norway	3–1	Uzbekistan [7]	Oslo	Oslo Tennis Arena	Hard (i)
Lebanon	0–4	Brazil [8]	Jounieh	Automobile and Touring Club of Lebanon	Clay
New Zealand	1–3	South Korea [9]	Newport (United States)	International Tennis Hall of Fame	Grass
Romania	3–1	Portugal [10]	Cluj-Napoca	Horia Demian Sports Hall	Hard (i)
Peru	3–2	Bosnia and Herzegovina [11]	Lima	Club Lawn Tennis de la Exposición	Clay
Ukraine	3–2	Israel [12]	Kyiv	Marina Tennis Club	Hard (i)

Knock-out ties

Home team	Score	Away team	Location	Venue	Surface
Norway	3–1	Ukraine [1]	Oslo	Oslo Tennis Arena	Hard (i)
Romania	4–0	Peru [2]	Cluj-Napoca	Polyvalent Hall	Hard (i)

World Group I results

Bolivia vs. Belgium

Bolivia 2	Rakiura Resort, Asunción, Paraguay[5] 18–19 September 2021 Clay		Belgium 3
1 2 3 1 Hugo Dellien Ruben Bemelmans 6 3 6 4     2 Murkel Dellien Zizou Bergs 6 4 4 6 6 2   3 Boris Arias / Federico Zeballos Sander Gillé / Joran Vliegen 3 6 4 6     4 Hugo Dellien Michael Geerts 4 6 6 4 2 6   5 Murkel Dellien Ruben Bemelmans 62 77 2 6

Argentina vs. Belarus

Argentina 4	Buenos Aires Lawn Tennis Club, Buenos Aires, Argentina[6] 18–19 September 2021 Clay		Belarus 1
1 2 3 1 Diego Schwartzman Daniil Ostapenkov 4 6 3 6     2 Guido Pella Erik Arutiunian 6 1 6 2     3 Máximo González / Horacio Zeballos Erik Arutiunian / Daniil Ostapenkov 5 7 6 2 6 2   4 Diego Schwartzman Alexander Zgirovsky 6 1 6 2     5 Federico Coria Daniil Ostapenkov 6 3 6 1

Pakistan vs. Japan

Pakistan 0	Pakistan Sports Complex, Islamabad, Pakistan[7] 5–6 March 2021 Grass		Japan 4
1 2 3 1 Aqeel Khan Yosuke Watanuki 3 6 2 6     2 Aisam-ul-Haq Qureshi Kaichi Uchida 4 6 64 77     3 Aqeel Khan / Aisam-ul-Haq Qureshi Shintaro Mochizuki / Sho Shimabukuro 6 4 4 6 2 6   4 Muzammil Murtaza Yuta Shimizu 1 6 1 6     5 Aqeel Khan Kaichi Uchida       not played

Uruguay vs. Netherlands

Uruguay 0	Carrasco Lawn Tenis Club, Montevideo, Uruguay[8] 18–19 September 2021 Clay		Netherlands 4
1 2 3 1 Francisco Llanes Botic van de Zandschulp 0 6 3 6     2 Martín Cuevas Tallon Griekspoor 4 6 66 78     3 Ignacio Carou / Martín Cuevas Wesley Koolhof / Matwé Middelkoop 2 6 1 6     4 Ignacio Carou Robin Haase 3 6 2 6     5 Francisco Llanes Tallon Griekspoor       not played

Slovakia vs. Chile

Slovakia 3	NTC Arena, Bratislava, Slovakia[9] 17–18 September 2021 Hard (i)		Chile 1
1 2 3 1 Alex Molčan Cristian Garín 2 6 4 6     2 Norbert Gombos Nicolás Jarry 6 3 65 77 6 3   3 Filip Polášek / Igor Zelenay Marcelo Tomás Barrios Vera / Alejandro Tabilo 6 1 77 64     4 Norbert Gombos Cristian Garín 6 0 6 1     5 Alex Molčan Nicolás Jarry       not played

Finland vs. India

Finland 3	Espoo Metro Areena, Espoo, Finland[10] 17–18 September 2021 Hard (i)		India 1
1 2 3 1 Otto Virtanen Prajnesh Gunneswaran 6 3 77 61     2 Emil Ruusuvuori Ramkumar Ramanathan 6 4 7 5     3 Harri Heliövaara / Henri Kontinen Rohan Bopanna / Ramkumar Ramanathan 77 62 77 62     4 Patrik Niklas-Salminen Prajnesh Gunneswaran 3 6 5 7     5 Otto Virtanen Ramkumar Ramanathan       not played

Norway vs. Uzbekistan

Norway 3	Oslo Tennis Arena, Oslo, Norway[11] 17–18 September 2021 Hard (i)		Uzbekistan 1
1 2 3 1 Casper Ruud Khumoyun Sultanov 6 3 6 3     2 Viktor Durasovic Denis Istomin 6 4 6 4     3 Casper Ruud / Viktor Durasovic Sanjar Fayziev / Denis Istomin 61 77 3 6     4 Casper Ruud Sanjar Fayziev 6 3 6 1     5 Viktor Durasovic Khumoyun Sultanov       not played

Lebanon vs. Brazil

Lebanon 0	Automobile and Touring Club of Lebanon, Jounieh, Lebanon[12] 18–19 September 2021 Clay		Brazil 4
1 2 3 1 Benjamin Hassan Orlando Luz 4 6 4 6     2 Hady Habib Felipe Meligeni Alves 1 6 3 6     3 Hady Habib / Benjamin Hassan Marcelo Demoliner / Rafael Matos 2 6 6 3 65 77   4 Roey Tabet Matheus Pucinelli de Almeida 0 6 1 6     5 Hady Habib Orlando Luz       not played

New Zealand vs. South Korea

New Zealand 1	International Tennis Hall of Fame, Newport, United States[13] 17–18 September 2021 Grass		South Korea 3
1 2 3 1 Rubin Statham Nam Ji-sung 2 6 2 6     2 Finn Reynolds Kwon Soon-woo 61 77 3 6     3 Marcus Daniell / Michael Venus Nam Ji-sung / Song Min-kyu 4 6 6 2 6 4   4 Rubin Statham Kwon Soon-woo 3 6 3 6     5 Finn Reynolds Nam Ji-sung       not played

Romania vs. Portugal

Romania 3	Horia Demian Sports Hall, Cluj-Napoca, Romania[14] 18–19 September 2021 Hard (i)		Portugal 1
1 2 3 1 Filip Jianu João Sousa 3 6 5 7     2 Marius Copil Gastão Elias 6 4 6 3     3 Marius Copil / Horia Tecău Nuno Borges / João Sousa 6 4 6 3     4 Marius Copil João Sousa 6 3 2 6 6 4   5 Filip Jianu Gastão Elias       not played

Peru vs. Bosnia and Herzegovina

Peru 3	Club Lawn Tennis de la Exposición, Lima, Peru[15] 17–18 September 2021 Clay		Bosnia and Herzegovina 2
1 2 3 1 Nicolás Álvarez Damir Džumhur 2 6 77 64 3 6   2 Juan Pablo Varillas Mirza Bašić 7 5 79 67     3 Sergio Galdós / Jorge Panta Mirza Bašić / Tomislav Brkić 5 7 2 6     4 Juan Pablo Varillas Damir Džumhur 6 1 6 3     5 Nicolás Álvarez Nerman Fatić 77 64 6 4

Ukraine vs. Israel

Ukraine 3	Marina Tennis Club, Kyiv, Ukraine[16] 5–6 March 2021 Hard (i)		Israel 2
1 2 3 1 Illya Marchenko Daniel Cukierman 1 6 6 3 6 2   2 Sergiy Stakhovsky Edan Leshem 3 6 6 3 2 6   3 Denys Molchanov / Sergiy Stakhovsky Daniel Cukierman / Jonathan Erlich 4 6 6 4 3 6   4 Illya Marchenko Edan Leshem 6 3 6 2     5 Sergiy Stakhovsky Yshai Oliel 6 4 6 2

Knock-out ties results

Norway vs. Ukraine

Norway 3	Oslo Tennis Arena, Oslo, Norway[17] 26–27 November 2021 Hard (i)		Ukraine 1
1 2 3 1 Viktor Durasovic Illya Marchenko 6 3 6 0     2 Casper Ruud Vitaliy Sachko 6 3 6 2     3 Viktor Durasovic / Casper Ruud Denys Molchanov / Sergiy Stakhovsky 64 77 3 6     4 Casper Ruud Sergiy Stakhovsky 4 6 6 3 77 64   5 Viktor Durasovic Vitaliy Sachko       not played

Romania vs. Peru

Romania 4	Polyvalent Hall, Cluj-Napoca, Romania[18] 27–28 November 2021 Hard (i)		Peru 0
1 2 3 1 Nicolae Frunză Nicolás Álvarez 6 2 6 4     2 Marius Copil Conner Huertas del Pino 7 5 6 2     3 Marius Copil / Horia Tecău Sergio Galdós / Arklon Huertas del Pino 4 6 6 3 6 2   4 Gabi Adrian Boitan Jorge Brian Panta 6 4 6 4     5 Nicolae Frunză Conner Huertas del Pino       not played