Polymarket’s “Map 2 Winner” option for M80 in the Counter-Strike match “M80 vs Aurora Gaming (BO3) - BLAST Open Porto Group A” fell sharply from 34.5% one hour ago to 17%, a 17.5 percentage point drop. According to ChainCatcher, the move was tracked by Catcher Predict monitoring in the prediction market. The article said the swing may reflect the impact of breaking news.