Which infraction applies when a player alters match results post-game?

The situation where a player alters match results after the game clearly falls under the category of cheating, and more specifically, it is classified as fraud. Fraud involves actions that intentionally mislead or deceive others for personal gain, such as when a player manipulates the outcome of a match for the sake of winning or acquiring rewards. This type of infraction demonstrates a severe breach of the integrity of the game, as it directly undermines the fairness and honesty expected in competitive play.

In the context of the other options, unsporting conduct - major usually addresses behavior that significantly disrupts the game or demonstrates a lack of respect towards opponents or officials, but it does not specifically involve altering match results. Cheating - stalling pertains to deliberately prolonging the game without a legitimate reason, which is relevant to gameplay tactics but not to post-game result manipulation. Game play error refers to mistakes made during the game that affect the outcome, but like the unsporting conduct category, does not encompass intentional deception regarding results after the match has concluded. Thus, the act of changing match results aligns most closely with cheating - fraud, reflecting the severity of the misconduct involved.