Polymarket’s submarket for the Dota 2 playoff event "Team Nemesis vs. Natus Vincere - PGL Wallachia" saw the "Team Nemesis" option in the match-winner market fall sharply from 48.5% one hour earlier to 30%, a drop of 18.5 percentage points. According to ChainCatcher, the move reflects a sudden swing in the prediction market and may be tied to breaking news affecting the event.