He was greatly mistaken in his 90% estimate, but the players with the best winrates when I quit (2011) were still winning ~60% of games. My ROI was ~14% at 100

He was greatly mistaken in his 90% estimate, but the players with the best winrates when I quit (2011) were still winning ~60% of games. My ROI was ~14% at 100s when I played professionally, totaling 1000s of games. I agree that at 1ks+ the best players were making ~5% ROI, but there were much better winrates up thru the 500s, which I don't consider "micros." Also, ROI is generally less at micros, because rake is a bigger issue.