Pool results
| Placing | Pool A | Pool B |
|---|---|---|
| 1 |  Paraguay |  Brazil |
| 2 |  Colombia |  Argentina |
| 3 |  Chile |  Venezuela |
| 4 | — |  Guatemala |
The play-offs of the 2018 Fed Cup Americas Zone Group I were the final stages of the Group I Zonal Competition involving teams from the Americas. Using the positions determined in their pools, the seven teams faced off to determine their placing in the 2018 Fed Cup Americas Zone Group I. The winner of the promotion play-off advanced to World Group II play-offs, and the losers of the relegation play-off were relegated down to the Americas Zone Group II.
| Placing | Pool A | Pool B |
|---|---|---|
| 1 | Paraguay | Brazil |
| 2 | Colombia | Argentina |
| 3 | Chile | Venezuela |
| 4 | — | Guatemala |
The first placed teams of the two pools were drawn in head-to-head rounds. The winner advanced to the World Group II play-offs.
 Paraguay 2 | Club Internacional de Tenis, Asunción, Paraguay [1] 10 February Clay |  Brazil 0 | |||||||||||||||||||||||||||||
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The runner-up teams of the two pools were drawn in head-to-head to determine the third and fourth placings.
 Colombia 0 | Club Internacional de Tenis, Asunción, Paraguay [2] 10 February Clay |  Argentina 2 | |||||||||||||||||||||||||||||
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The bottom team of Pool A and the third placed team of Pool B were drawn in head-to-head. The loser was relegated down to Americas Zone Group II in 2019. The last placed team of Pool B (Guatemala) was automatically relegated.
 Chile 2 | Club Internacional de Tenis, Asunción, Paraguay [3] 10 February Clay |  Venezuela 0 | |||||||||||||||||||||||||||||
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| Placing | Teams | |
| Promoted/First | Paraguay | |
| Second | Brazil | |
| Third | Argentina | |
| Fourth | Colombia | |
| Fifth | Chile | |
| Relegated/Sixth | Venezuela | Guatemala |
Paraguay was promoted to the 2018 Fed Cup World Group II play-offs. Venezuela and Guatemala were relegated to Americas Zone Group II in 2019.The play-offs of the 2011 Fed Cup Americas Zone Group I were the final stages of the Group I Zonal Competition involving teams from the Americas. Using the positions determined in their pools, the eight teams faced off to determine their placing in the 2011 Fed Cup Americas Zone Group I, the top countries of each pool played for first to second, while the bottom two of each pool competed for fifth to eighth. The top team advanced to World Group II play-offs, and the bottom two teams were relegated down to the Americas Zone Group II for the next year.
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The Americas Zone was one of three zones of regional competition in the 2000 Fed Cup.
The Americas Zone was one of three zones of regional competition in the 2002 Fed Cup.
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Billie Jean King Cup Americas Zone | |
|---|---|
| 2020–21 Americas Zone Group I teams | |
| 2022 Americas Zone Group II teams | |
| Editions of the Billie Jean King Cup Americas Zone | |
