A way to rank up and beat the system?

SO…i was playing ladders then i fought against a full physical mech,the battle was slow but he was winning (sorry no pic) then the match stop i thought it was lag but 5 minutes have passed and nothing,so i refreshed my browser then when i looked at my rank i was at rank 5 instead of 6,so i said to myself “Cool…” so i went for another ladder,same thing happened…i wont abuse this cause it isn’t fair and fun…please fix this before anyone finds out…wait…crap