What is fixed odds betting? Fixed Odds are the current fixed price for an event or runner at any given time. The price you see is the price you’ll be guaranteed no matter what happens to the price after you have placed your bet. Fixed odds betting is very common in online betting as most bet types incorporate fixed odds. Fixed odds and horse racing Fixed odds are used heavily in horse racing. There are many bet types in horse racing betting that use fluctuations in the fixed price at any given time to provide a more appealing product to the bettor, eg. Top Fluctuation.