So, yesterday I(Sova) had a game where my friend (Omen) disconnected around the mid game - after 8-9 rounds - due to some internet problem. We played 4 vs 5 but managed to clinch a victory in the overtime. I got a slightly increase - one arrow up. - ( I don't mind since my frags are not high) but my friend got a normal increase - two arrow up. He is silver 3 and I am silver 2. I don't know how these ranking up/down are calculated anymore