Toss has now hit 44%:
https://i.imgur.com/pPNMPjy.png
ZvP is the worst matchup for GMs, and every race’s lowest win-rate is vs Protoss:
https://i.imgur.com/1xpR6qz.png
We can use the algorithm mentioned previously to can account for the impact of demotion:
(-(0.624*0.27 + 0.6232*0.27) + 1)/0.44 = PvZ
1.5074 = PvZ
That means PvZ win-rates are skewed by a factor of 1.5 due to demotion of zergs, making the true GM win-rates:
(60.84 - 56.15) * 1.5074 + 60.84 = 68% PvZ.
56.15 - (60.84 - 56.15) * 1.5074 = 49% ZvP.
Don’t worry guys, the “balance” counsel is on the job! 