Many sports now use models of expected value, and a beginner will meet them often. The idea is easier than the name suggests. A rough grasp is enough to use the figures sensibly.

What the model does

An expected goals figure assigns each shot a value between zero and one, based on how often similar shots have produced goals. A shot from close range in the centre of the goal gets a high value, while a long shot from a wide angle gets a low one. The total tells us roughly how many goals the chances were worth.

The comparison with the actual score is what makes the number interesting. If a team scores three goals from chances worth one in total, it was probably fortunate. Over a season, luck tends to even out and quality shows up.

Models are built on past data and on choices made by their authors. The same match can have different expected values from two sources. Models always leave something out, for example the pressure from defenders or the skill of the goalkeeper.

The idea has spread to other sports, including expected points and win probability models in basketball, baseball and American football. The logic is the same: compare what happened with what usually happens in similar situations.

As one example of a service that shows advanced figures beside basic ones, the Vave Casino app - https://vavecryptocasino.com/ can be mentioned. Basic numbers should come first, with the model-based figures as a second layer.

If betting markets form part of your interest, treat a model as a description and not a signal. Keep a fixed budget and a firm time limit, whatever the model shows.

Models help in understanding why results happened. They reduce the role of luck in the story and leave the next match open.