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Roehampton Challengers | Tennis | 2026-08-18 12:20 UTC
Roehampton Challengers | Tennis | 2026-08-18 12:20 UTC
Line movement tracks how odds change over time across sportsbooks. When odds shorten on one side, it signals where sharp bettors are placing money. Data will appear once multiple snapshots have been recorded for this match.
When odds decrease (go down), more money is coming in on that side — the sportsbook is shortening the price to reduce liability. When odds increase (go up), money is flowing the other way.
Sharp books (Pinnacle, SBOBET) move first on informed action. If a sharp book shortens odds on one side but recreational books (Dafabet, Bovada) haven’t followed, it’s a strong signal — the recreational books are offering stale value that sharp bettors have already identified.
We track odds from 1 sportsbooks every 15 minutes. The table above shows opening odds vs current odds for each book, with implied probability changes highlighted.
Sharp money refers to wagers from professional bettors who bet for a living. Sharp books like Pinnacle and SBOBET adjust lines quickly in response to informed action, while recreational books like Dafabet and Bovada are slower to react. When sharp books move but recreational books don't, it signals value on the stale line.
Odds move because of betting volume (more money on one side forces the book to adjust), injury news, weather, lineup changes, and sharp action. A large move at a sharp book that isn't followed by recreational books is the strongest signal.