See main article: 2020 Davis Cup. 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]
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:
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] Seeded teams
Unseeded teams
| Home team | Score | Away team | Location | Venue | Surface | |
|---|---|---|---|---|---|---|
| [1] | Asunción (Paraguay) | Rakiura Resort | Clay | |||
| [2] | Clay | |||||
| [3] | Pakistan Sports Complex | Grass | ||||
| [4] | Carrasco Lawn Tenis Club | Clay | ||||
| [5] | Hard (i) | |||||
| [6] | Hard (i) | |||||
| [7] | Oslo Tennis Arena | Hard (i) | ||||
| [8] | Automobile and Touring Club of Lebanon | Clay | ||||
| [9] | Newport (United States) | Grass | ||||
| [10] | Hard (i) | |||||
| [11] | Club Lawn Tennis de la Exposición | Clay | ||||
| [12] | Marina Tennis Club | Hard (i) |