The following are known Action Replay Codes for ATP Tour Championship Tennis on SEGA Genesis / Mega Drive (Genesis).

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

Device Compatibility: Action Replay

• 1P Score Modifier
  FF0060:XX
• 2P Score Modifier
  FF0061:XX

Score Modifiers

• 0 – 00
• 1 – 15
• 2 – 30
• 3 – 40
• Etc…