It's traditional at this time of the year to write some kind on annual wrap-up, but much of what I wrote a year ago is still relevant, in fact now even more so. I wrote last year:
One of the terms economists talk about is 'utility' and it's a fact that the more money you accrue, the less valuable each pound you win becomes. When you need to gross double what you end up with, and what you end up with is worth less than it used to be to you, it's hardly surprising that enthusiasm wanes. There is no viable option to Betfair, and none on the horizon. The golden days are over, and as Mark says, it's very much a question of grinding things out.
I had to wait a while for the Championship qualifier for the Lay Last Loser System this season, conceived after a post on the Betfair Forum earlier this season (I can't locate it now) suggested that laying the last team to lose their unbeaten record in each of the lower divisions was a profitable strategy over that teams next few games.
The above results includes the Premier League and continues laying teams until they win again. Prices are based on the Pinnacle Sports prices courtesy of Football Data and adjusted for the lay price based on the over-round.