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What have your experiences about this been? Is match fixing considered a common occurrence in leagues you place bets at?
No experience so far or at least not to my knowledge. I also prefer betting on top leagues like most members. I have heard of match fixing accusations from local sport leagues but it's usually the accuser's words against the accused. No real evidence to support it so I cannot really call the game as rigged. There are bettors that are just sore losers so can't take them seriously.