Even if you are an expect you can’t know until the start of the match, we can just notice this right after so technically many bettors already placed their bets by that time, and knowing that its a fixed match it can ruin everything. This has been an issue for many boxers and matched, just place a bet that you can afford to lose always.
Are you sure about this? I am not thinking so, many fixed matches are later known from the match played and thorough investigations, but the betting sites would have forgotten about it and will not give back money to those that lose and will not also ask for the betting money from those that win. I have seen some fixed matches before as a result of FIFA investigating it and found it to be true. This is most likely common in small matches, that is why I do not go for small matches because they can be fixed when many pre match and in-olay bettors will lose. The best is just to go for big leagues like EPL, Seria A, La Liga and Bundesliga and many like that.