I think it is the ability to do away of his emotions about fixed matches which we all know it is always hard for bettors to get the predictions right especially when you justifies the team based on their notable strengths or the odds given amongst the teams.

Or a kind of manipulated match that may totally get predictors lost out of achieving expected results despites how much good you may be in analysing the games.

So it is like one of those unbelievable outcomes happening in sport events where it is almost guaranteed that a particular team was going to win and as the game keep up it suddenly turnout what was never expected.

It is like getting on your nerves when experiences such events on severally and that could be mindedly troubling so, OP chooses to move on with his gambling journey and let go off his nerves and just believe such is one of the outcomes experienced in gambling therefore given you a good emotional state of experiences not to be troubled anymore.

Invariably when you are able to catch such a rigging match outcome, you will be sure to make right winning decision but I bet if such even exists, it will be hard to get a leakage of the drastic changes.

As much as rigging of game outcomes may be disreputable of the hosts when get caught, I doubt to say we can confidently identify it to say we can keeping winning because neither the hosts or the panel involved in the rigging would let it as a secret get exposed.