Tony,

There were several situations on the weekend when it was extremely obvious which way the odds would move. For example that $6 one I mentioned - when I backed it at $6 it was showing around $3 on all TABs and on IAS. Although it did drift out on the TAB there was no way it was ever going to drift to $6 so the Betfair price inevitably came down and I had no trouble laying it at $5 (I was being super-cautious, if I had waited until just prior to the jump I could have layed it at $4.50 or so). However I agree that you would probably not be able to make enough doing this alone as the margins are fairly slim (although you may if they start covering more meetings and as the turnover increases) - but if you are going to be online placing your normal bets anyway then it is just icing on the cake.

The bigger opportunites are probably in laying certain horses and in taking the far better than TAB/Bookie odds on others. For example you could easily get around the $2.00 mark for Northerly on Saturday which is way better than the TAB and Top Fluct. prices.

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"Computers can do that????" - Homer Simpson