Blog · category
Betfair, Smarkets and Matchbook lay prices — why exchange data is the other half of every matched and arbitrage calculation, and how to get it cleanly.
Exchange & lay data
Backing bets for an outcome; laying bets against it, and only an exchange lets you take that side. Here is the plain version, plus the back/lay data pair a matched feed hands you ready to use.
· 5 min read
Exchange & lay data
A bookmaker back price is only half of a matched bet. This is the other half: what exchange and lay coverage is, the three exchanges we match against, and why the paired lay decides the opportunity.
· 6 min read
Exchange & lay data
Betfair has a real public API, so you can pull its lay odds directly. This is how that route works, where it costs you, and the alternative that delivers lay already matched across three exchanges.
· 5 min read
Exchange & lay data
Betfair delays data on a delayed application key; live, undelayed prices need a live key that meets Betfair's requirements. Here's what that means for your build, and when it matters.
· 5 min read
Exchange & lay data
A betting exchange lets bettors bet against each other, backing or laying, with the exchange taking commission. Its lay prices are the other half of every matched and arbitrage pair.
· 5 min read
Exchange & lay data
A great lay price with no money behind it is a phantom. Here's what lay liquidity is, why a matched feed carries a liquidity figure on every row, and how to gate opportunities by it.
· 5 min read
Start a free trial and call the real endpoint — the full UK feed, bet365 included, matched against exchange lay prices. Or check what's live now on the coverage dashboard.