The ideas behind the predictions, explained plainly. No jargon for its own sake, and no pretending the maths is certain.
Expected goals (xG) scores every shot by how often shots like it are scored, so a team's xG is the number of goals an average team would have scored from the same chances.
A bet has value when the probability you believe in is higher than the probability the odds imply. It has nothing to do with whether the bet wins.
An Elo rating is a single number for a team's strength that rises when they beat stronger opponents and falls when they lose to weaker ones, updating after every match.
Oddsy blends several statistical models with a language model's reading of team news, publishes the resulting probability before kick-off, and grades every pick afterwards in public.