Well, at least in my experience, match fixing is still said to be an issue with e-Sports. TO be honest, there is a disproportionate amount of matches for how low the stakes can be and how small some teams are. It might seem too intriguing to some new players that their team is now playing on matches that can be bet on, and there have been report sof players fixing their own matches to bet on them... This is easier to be done in esports than other events. Especially so since the rewards for a tournament can be at the level of a per-match salary for real-world sports. In such cases fixing your match might even be more profitable. Also easier to hide since it's a virtual environment.