Closing Line

The closing line is the final set of odds offered by a sportsbook just before an event begins. It's widely considered the most accurate reflection of true probabilities because it incorporates all available information and betting activity. Professional bettors measure their skill by consistently beating the closing line — if you regularly get better odds than the closing line, you're likely a profitable bettor long-term. Sharp bettors aim to bet early when they identify value, as odds tend to move toward the true probability as kickoff approaches. Consistently beating the closing line by 2-3% is considered excellent.