Advanced metrics like expected goals (xG) can provide valuable insights into predicting match outcomes, as they quantify the quality of scoring chances created by each team during a match. By assessing the likelihood of different types of goal-scoring opportunities based on historical data, xG can offer a more nuanced understanding of a team's performance beyond traditional statistics like goals scored and possession. However, while xG can indicate which team may have had the upper hand in terms of creating chances and potentially winning, it is not infallible, as the unpredictable nature of football, including elements like individual player skill, tactical decisions, and even luck, can influence the actual match result.