AI Horse Racing Handicapping Software
That difference — roughly 10 per cent on the individual price — is the cost of the bookmaker margin. The exchange takes a commission on the net winnings of the winning side, typically between 2 and 5 per cent depending on the user’s activity level. Instead of setting odds and accepting bets against them, the exchange matches punters on opposite sides of a bet. The betting exchange — Betfair being the dominant platform — operates on a fundamentally different model to a traditional bookmaker. That does not mean extra places are bad value — the additional place coverage can still be worth the wider margin, depending on the race — but it does mean you should not assume that an extra-places promotion is automatically a gift.
If you back a horse at 6/1 in the morning and it starts at 9/1, you get paid at 9/1. The opposite scenario—backing a drifter who fails—burns stake money just as easily. Late-entering horses or those with improving form often represent value against prices set weeks earlier. The market moves significantly in the final days as the handicap weights are published and declarations narrow the field.
The systematic search for best odds separates profitable punters from recreational ones. Then let the market move as it will—your downside is protected, and any drift converts into bonus profit. Strategic use of BOG requires understanding when to bet and when to wait. This promotion exists because bookmakers are competing for early-morning turnover. A six-runner race where implied probabilities sum to 112% has a 12% overround—meaning the bookmaker’s theoretical margin is 12% before any punter places a bet. But without calculating implied probability, you cannot begin to answer that question systematically.
If your selections consistently close shorter than the price you took, your assessment method is adding value. The days when betting shops competed fiercely on price have given way to an era where online platforms sometimes offer “good enough” pricing, knowing many customers will not check elsewhere. Before placing multiple bets, check the specific bookmaker’s terms—assuming BOG applies universally is a common and costly mistake.
Ross Burdon provides his latest stable update, with Gifts Differing set to run at Chelmsford on Thursday, while Dust Cover Dave Massey previews Saturday’s action at Aintree, selecting his best bets for the races at 1.15, 1.45, 2.25 and 3.00. Dave Chisnall spoke to kwiff on Friday afternoon just before he kicked off his Grand Slam of Darts qualifying campaign Manchester United host Aston Villa in Sunday’s featured Premier League clash, with both sides looking Hector Crouch heads to Southwell for three final rides on Saturday before jetting off to
Odds comparison sites like Oddschecker display prices from major UK bookmakers side-by-side, allowing quick identification of the best available price. Finding the best horse racing odds requires comparison across multiple bookmakers before placing each bet. Essentially, BOG is free insurance that lets you lock in value early without penalty if the market moves against your selection.
Price differences of 10% or more between bookmakers on the same horse are common, and capturing these differences consistently produces significant long-term value. Cheltenham in March represents the pinnacle of National Hunt racing, with 28 races across four days attracting the strongest fields of the jumps season. The betting liquidity follows the crowds, with turnover at major festivals dwarfing everyday racing. Add others as specific opportunities arise—bookmakers rotating extra places on different races, or offering enhanced terms on festivals you non gamstop bookies follow closely. Extra places promotions warrant particular attention during major festivals and feature race days. At 1/4 odds, the same selection returns 5/2 (plus stake) for placing.
Standard four-place terms apply for the main race, with bookmakers typically offering enhanced terms of five, six, or even seven places through promotions. The unique challenge—40 runners over four miles and 30 fences—creates a race where the form book tells only part of the story. Disciplined punters identify specific targets where their form analysis offers genuine edge, rather than chasing action across every race. Twenty-eight races over four days tempts overtrading. Extra places promotions extend to five or six places on Festival handicaps at most major bookmakers.