In betting,
"drift" refers to when the odds on a particular outcome increase (become longer), meaning the bookmakers consider that outcome less likely to happen.
Key Points About Drift:
What it means:
- Odds moving outward (e.g., from 5/1 to 8/1)
- Less money being backed on that selection
- Bookmakers becoming more confident it won't win
Why odds drift:
- Lack of public support/betting interest
- Negative news (injuries, poor form, weather conditions)
- Money flowing heavily toward other selections
- Professional bettors avoiding the selection
Example:
If a horse starts at 3/1 in the morning but drifts to 6/1 by race time, it has "drifted" significantly.
Tracking Drift:
You can monitor odds movements on:
- Oddschecker (comparison site)
- Betfair Exchange (real-time market movements)
- Individual bookmaker sites like Bet365, William Hill, or Paddy Power
Betting Strategy: Some bettors see significant drift as either a warning sign to avoid a selection, or conversely, as an opportunity to back it at improved odds if they believe the drift is unwarranted.
The opposite of drift is when odds
shorten (decrease), indicating increased confidence in that outcome.