When you win a round.

And someone from the enemy that did bad proceeds to mock your rank. I play this game quite a bit and know enough to know that unless you're bronze 5 to silver 5 ranked is not going to mean much until you get to plat. The reason is because A lot of people carry themselves with champions that are easier to win lane with. So gold and silver players generally are going to be about the same skill level.

Also off topic why are players building random shit in ranked. I hate to throw yasuo under the bus but jungle yasuo like really?