This is a funny situation, but the main thing is that there are no losers in this situation, which means the author of the topic has nothing to blame himself for. Although the opposite could well have happened here. The real favorites of this match would have won and the author's friend would have lost. On the other hand, this is a bet that was made by the good will of both parties and no one forced anyone to do it. In addition, I think that even in the worst-case scenario, the other side of the dispute would not have suffered too much of a loss. In general, such disputes are very rare. If a person does not look at the bookmaker's odds, then he usually does not argue. It is also worth noting that in a personal dispute between two people, by default, the dispute is concluded with equal odds. Simply because people are too lazy to calculate the odds and the method of calculating them can be controversial.