Virtua Tennis 3
50 Achievements
1,000
Xbox 360
1st Custom Player Win
Win a match with an Custom Player on default settings
20
How to unlock the 1st Custom Player Win achievement in Virtua Tennis 3 - Definitive Guide
This can be accomplished in World Tour mode. When you enter your first tournament, defeat your opponent. At the end of the match this will appear. You can also do this in Exhibition mode but World Tour is much easier since you are going to try and power-up your character there anyway.
Just take your player and beat someone in a match.
To do this in Exhibition mode, you can set it to 1 game, 1 set but the difficulty has to be set to Normal