Victory Points aren't used to increase a player's level, but rather represent a statistical value that measures the quality of a win (or defeat) based on the score difference between teams.

Victory Points range between 0 and 20 points per game and are awarded based on the difference in the score between the two teams at the end of the game.

For example, if the NORTH/SOUTH couple wins with 1000 and EAST/WEST loses 
with 300, the difference is 700 points, and Victory Point will be assigned on that basis; in this case 16 (for the NORTH/SOUTH team) and 4 (for the EAST/WEST team).

 

See the table below, and the row evidenced by the red arrow.

 

The Victory Points will appear like this (red arrows in the image below) in the historic match: