Yuuki and Lily vs Midnight and Hoshi
We'll say that Toya and Nova beat Reiji and Kris. Then have them fight Lily and Yuuki who beat the other two and then have Lily and Yuuki win. 
Just make the girls work well together lol and then Iggy can do his best to fight the girls. 
It'll be a bit harder because a guy needs to be a little careful not to hit or grab certain places when fighting a woman and yuuki has an advantage over him.