Esports broadcasts run 30 to 120 seconds behind the actual server state, and traders using the stream are effectively trading the past. If you are quoting or trading live esports markets without a direct data feed, you are the slow one, and you will be systematically picked off by anyone who is not. This strategy is the defensive discipline: measure your delay continuously, and either close the gap with an official feed or stop quoting during live play.
Markets on Polymarket where stream-delay latency guard is the natural play: