If you've spent time betting on horse racing, you may have come across BSP. Some punters swear by it. Others may have no idea how it works.
So what is BSP, why does it matter, and why do so many experienced punters choose it over taking fixed odds?
What Is BSP?
BSP stands for Betfair Starting Price. It's the official starting price generated by the Betfair Exchange just before a race begins.Unlike a bookmaker, Betfair doesn't decide what the price should be. Instead, the market does.
When you place a BSP bet, you're simply telling Betfair that you want whatever the official exchange starting price is when the race jumps. You don't need to lock in a price beforehand or watch the market in the final minutes before the start.
Once the market is suspended, Betfair calculates one final price for every runner and that's the price your bet is settled at.
In short, BSP is a market-driven starting price, not a bookmaker's opinion.
How Is BSP Calculated?
This is where BSP differs from every other betting product.
Before a race starts, the Betfair Exchange is full of punters backing and laying horses at different prices. At the same time, other punters are placing BSP bets, agreeing to accept whatever the official starting price ends up being.
When the race goes off, Betfair's system looks at all of those unmatched orders and calculates the single price that allows the maximum amount of money to be matched between backers and layers.
Think of it as the point where supply and demand meet.
The more people wanting to back a horse, the shorter the BSP is likely to be. The more people wanting to lay it, the bigger the BSP can become.
Because the price is created by thousands of market participants rather than one bookmaker, BSP is often regarded as one of the best reflections of a horse's true market value.
Why Do Punters Use BSP?
For many punters, BSP removes the guesswork.
Instead of wondering whether to take an early fixed price or wait until closer to the jump, they simply back their selection at BSP and let the market determine the final odds.
Another reason is transparency.
Bookmakers build a margin into their markets. Betfair doesn't build that margin into BSP itself. Instead, Betfair charges commission on winning bets, meaning the price is determined by genuine market demand rather than a bookmaker managing its book.
Many professional punters also use BSP as a benchmark.
If they're consistently backing horses at prices better than BSP, it's often a sign they're identifying value before the wider market catches up.
Is BSP Better Than Fixed Odds?
Not always.
If you take fixed odds, you know exactly what you'll be paid the moment you place your bet.
With BSP, you won't know your final price until the race starts.
Sometimes BSP ends up bigger than the best fixed odds available before the jump. Other times it can settle shorter.
Neither option is always better, the market decides.
Many punters simply compare the available fixed odds with what they believe BSP is likely to be before deciding which offers the better value.
How Does BSP Compare to the Tote?
People often confuse BSP with the tote, but they're completely different.
The tote is a pool betting system. Everyone's money goes into the same pool, the operator takes its commission, and the remaining pool is shared between winning bets.
BSP doesn't work like that.
You're still betting on the exchange against other punters, not into a pool. The starting price is calculated by matching supply and demand, not by dividing up a betting pool after deductions.
Final Thoughts
BSP has become one of the most popular ways to bet on horse racing because it removes the bookmaker from the pricing process.
Rather than relying on one operator to set the odds, the market determines the final starting price through thousands of backers and layers trading against each other.
It won't always be bigger than fixed odds, and it won't always beat the tote. But if you want a price that's driven by genuine market supply and demand, BSP is one of the fairest and most transparent ways to bet.
