PENTAKILL but still lost the Game...How??? | Let´s watch the Replay and find out!

Hey Forum, what is goin on?

So the question is pretty much in the title, how did i lose this game? This is a ranked game on Diamond five and i did even a pentakill but still, i lost the game. So i thought lets watch the replay to figure out what ive done wrong and to learn from my mistakes and share it with you guys. Also i will talk about important gamethings such as gameknowledge in general, so you guys will also benefit from it. So stay tuned and tell me your thoughts in the Commentsection.