Random Riddle: 4 Men Sat Down To Play

One night, four men sat down to play.

They played all night through break of day.

They played for gold, and not for fun,

With separate scores for everyone.

When it came time to square accounts,

All men had made quite fair amounts.

Can you the paradox explain:

If no man lost, how could all gain?
 

Random Riddle: 4 Men Sat Down To Play