Ok, Tucker, a simple front runner back-to-lay.
Say, a horse called Example is running on the AW at Lingfield and is drawn in stall 2. Example is the only front runner in the field, scoring 16 pts on the Geegeez pace analysis. No other horse on the pace grid has 4 pts to their name (eg none has attempted to lead on their previous four starts).
Example will almost certainly get an uncontested lead from his inside draw.
Therefore, if just before the off, Example’s odds on Betfair are 4.5 put on £10 to win. Then lay the horse to £11 at 4.0 (you won’t get matched, just tick the ‘keep in-play’ box).
Front runners odds nearly always shorten, therefore your lay bet will almost certainly get matched.
Consequently, if Example wins, you win £2 (win £35 – lay of £33 = £2 profit). If Example loses you win £1 (the lay returns £11 the win bet loses £10 = £1 profit),
This is the essence of this type of trading, accumulating small risk free profits.
There are a loads videos on Youtube which will take you through the basics of trading if you want to learn more.