Why player prop lines move
A player prop isn't a fixed number. From the moment a book opens a line to tip-off, the number and the prices around it can change many times. Knowing why helps you read a price for what it is: a snapshot.
What moves a prop
- News. An injury to a teammate means more shots, rebounds or assists for someone else. A player listed as questionable, a minutes restriction, a starter resting on a back-to-back: each changes the expected stat line, often by a lot.
- Money the book respects. Books move when bettors they consider well-informed bet one side. At a sharp book this happens fast and by design (why).
- Copying. Many books watch the market and shade toward it. When the reference price moves, others follow, sometimes minutes later, sometimes hours.
- Balancing exposure. A recreational book may shade a popular side (overs on star players, for example) without any new information.
Line moves versus price moves
A book can change the number (24.5 points to 23.5) or keep the number and change the prices (-110 to -130). Both are moves. Comparisons only make sense on the identical number, which is why the gap board compares DraftKings and Pinnacle only where they quote the same line, after removing the vig from each.
What the board's states mean
- LIVE: the price that put the pick on the board is still available at DraftKings at the last scan.
- MOVED: DraftKings has moved toward Pinnacle, and the gap that qualified the pick is gone at today's price. This is the usual fate of a gap: books converge, often within an hour or two.
- CHECK NEWS: the gap has widened past 4.5 points. That size of disagreement usually means one book has priced injury or rest news that the other hasn't. It's a reason to read the news, not a pick.
- STARTED: the game has tipped. The pick stays on the board as it was published.
Why timing matters
Every price on OpenSlate is a read taken at a specific time, shown on the page. Prices are not a live feed, and DraftKings may have moved since the last scan. Pro members get an alert when a pick moves, but the only price that counts is the one in front of you when you look.
Moving toward you, moving away
When a line moves toward the side you took after you took it, you got a better price than the market settled on: that is closing line value. When it moves away, the market disagreed with your price. Either way, one move on one line is noise; patterns over many lines are what carry information.
Reading a move without over-reading it
A useful habit is to ask what changed before deciding what a move means. Check the injury report and the beat writers first; most big prop moves have a reason that's public within minutes. If nothing changed, the move may be money or copying, which is information too, but weaker. And remember that props on bench players move on small amounts of money, so a jump there says less than the same jump on a star's points line.
More: Removing the vig: how to turn two prices into a fair probability · Why Pinnacle is the reference price · Closing line value, explained · Why parlays cost more than the same bets straight · Is DraftKings or Pinnacle sharper on NBA player props? · How do I calculate a no-vig price? · What is a +EV player prop? · Why do DraftKings and Pinnacle prop lines differ? · What is a Trap Over? · Are NBA rebound unders profitable? · How do I compare sportsbook prop odds for free? · What does closing line value tell me? · How often do prop lines move before tip-off? · What is the vig on DraftKings player props? · How do injury reports move NBA prop lines? · What is a market-maker sportsbook? · Is it better to bet the over or the under on player props? · Can you make money betting player props? · Can you bet at Pinnacle from the US? · What free tools help with player prop betting? · Does betting DraftKings when it disagrees with Pinnacle work? · What does over/under mean on a player prop? · How do sportsbooks set player prop lines? · What is a sharp bettor? · How do I convert American odds to implied probability? · What is a steam move in sports betting? · What are alternate lines on player props?
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