Edge explained

Edge is the size of your advantage on a bet: how much better the odds are than the outcome's true probability warrants. An edge of 5% means that, per £100 staked, you expect £5 of profit in the long run. Edges in sports betting are small — professionals get excited about 2–5% — because betting markets are competitive and mostly efficient.

Claimed edges should be treated sceptically, including ours. The honest test of an edge is settlement over a large sample: if a method's graded record over hundreds of bets shows positive return, the edge is real; if not, it was noise. This is why we archive every tip before kick-off and publish the settled results, wins and losses alike.