The following are known CodeBreaker Codes for Davis Cup Tennis on Nintendo Game Boy Advance (GBA).

The codes should work with the region specified but may work for other regions as well.

• Master Code – Must Be On
  945E3DA9 35AB
  4827ECCD C45F
  E8A8D3ED C458
• P1 Score Always 40 (Score Once To Win)
  5D83638B A021
• P1 Always Scores 0
  6CC76190 A201
• P2 Score Always 40 (Score Once To Win)
  6CC36190 A001
• P2 Always Scores 0
  5D87638B A221