Yes, odds can change after you place a bet, and this is a common occurrence in both sports betting and other forms of gambling. Here are a few reasons why odds might change:
1. **Moneywagon effect**: If a large amount of money is bet on a particular outcome, the odds can shift to reflect the new implied probability. Bookmakers adjust the odds to balance their exposure and to ensure they can pay out winnings no matter the result.
2. **New information**: If new information becomes available that could affect the outcome of the event (such as an injury to a key player in a sports game), the odds will often change to reflect this new knowledge.
3. **Market movement**: As more people place bets, the market as a whole may shift. If a particular outcome becomes more popular, the odds for that outcome may become less favorable.
4. **Time**: The closer you get to the event, the more likely the odds are to change. As the event approaches, more information becomes available, and bettors’ interest can increase, leading to changes in the odds.
5. **Bookmaker adjustments**: Bookmakers may adjust the odds for various reasons, including to correct what they believe to be an imbalance or to attract action on a particular side of a bet.
It’s important to note that once you’ve placed a bet, the odds at the time of your bet are typically locked in for that particular wager. This means that even if the odds change later, your potential payout will be calculated based on the odds at the time of your bet. However, some betting platforms may offer “cash out” options where you can settle your bet early for a predetermined amount, which can be influenced by the current odds.