Infinity colors

How are colors determined in Infinite matches?I'm playing as yellow for the 5th time in a row,and I'm not sure whether to attribute it to bad luck or something else...

I think it's just... a weird situation.  I think it's difficult to give an alternance yellow/red in each round, and it is based on the players you play. If they were yellow too, then they have to play, the system has to choose. I have no more explanation.