TEAM SIZE
Teams may have up to 3 active players. Player 1 and Player 2 play singles; Player 3 is doubles-only and is required for doubles only when both teams have three players.

The second edition of the WTSL World Cup begins with qualifiers on October 2, 2026, running through early November, before the Final 8 takes place from November 30 to December 13, 2026.
Teams may have up to 3 active players. Player 1 and Player 2 play singles; Player 3 is doubles-only and is required for doubles only when both teams have three players.
Every team is allowed one substitute. If a substitute replaces a player during qualifiers, they take that player’s place for the rest of the qualifiers. The replacement cannot be reversed.
Nations without a partner may be offered a merged team, or can play solo.
Players use different characters from their nation. Approved neighbouring-country characters can be used if needed.
P1 vs P1 · P2 vs P2 · Comp Doubles
Player 3 does not play singles and must be used in doubles. Comp Doubles pairs Player 3 with an Incredible level 10 CPU Partner (Player slot 3 in-game). Human doubles must also include Player 3.P1 vs P2 · P1 vs P2 · Comp Doubles
Player 3 is optional. Comp Doubles uses Player 1 by default, or Player 3 if selected, with an Incredible level 10 CPU Partner (Player slot 3 in-game). Human doubles uses two selected lineup players and is played only if both teams agree.P1 vs P1 · P2 vs P1 · Comp Doubles
Player 3 is optional. Comp Doubles uses Player 1 by default, or Player 3 if selected, with an Incredible level 10 CPU Partner (Player slot 3 in-game).P1 vs P2 · P1 vs P2 · Comp Doubles
Comp Doubles pairs the selected player with an Incredible level 10 CPU Partner (Player slot 3 in-game). Both teams can choose human doubles; if either team declines, Comp Doubles is used.P1 vs Player · P2 vs Player · Comp Doubles
Comp Doubles pairs the selected doubles player with an Incredible level 10 CPU Partner (Player slot 3 in-game).Player vs Player · Player vs Player · Comp Doubles
Comp Doubles pairs the selected doubles player with an Incredible level 10 CPU Partner (Player slot 3 in-game).A tie is decided when one team reaches two match wins. In group play, all scheduled matches should be played; in knockout play, the first team to two wins advances.
Player 1 and Player 2 play singles. Each team must select Player 3 for doubles in a three-player-versus-three-player tie. In other ties, Player 3 is optional; Comp Doubles uses Player 1 if Player 3 is not selected. The Team Portal manages the shared roster; official signup pages remain available for tournament registration. A coin toss decides which nation submits first.
Comp Doubles pairs Player 1, or Player 3 when selected, with an Incredible level 10 CPU Partner (Player slot 3 in-game). Player 3 never plays singles and is required for doubles only in a three-player-versus-three-player tie. A one-player team may use an approved player from their country or a neighbouring country instead of the CPU partner.
Human doubles is used only when both teams select it in the Team Portal. In a three-player-versus-three-player tie, each pair must include Player 3. In other ties, Player 3 may be included but is optional. External apps are required.
The higher-ranked nation chooses from courts assigned to its country or enters a custom venue name for offline review. Merged nations can use courts from either country.
If neither host country has a listed court, Davis Cup Group Stage is required and is the only selectable venue.
The Final 8 uses the Davis Cup Finals court.
Teams are formed from the top two ranked players of each nation. If someone declines, selection moves down the rankings.
Seeding uses the higher-ranked player on each team.
Romania, the 2025 champions, receive a bye and are already locked into the Final 8.
This year, 7 nations will qualify through the qualifiers to join them.