Great idea but terrible ratios. A bronze player and a master player are much much different. 4 times the payout is insanely low. Bronze to plat could be 4x maybe, but even that is a stretch.
that just means that if a master player accept a request to fight a bronze player; he would have to bet 2 to win 0.5. But his win ration should be almost 100% (i'd take any confirmed bronze player for 10/1 and still be profitable; and i'm platinium...)
i just throw those ratio; if you are willing to join; let's discuss