The theory is simple: if the price you take is consistently bigger than the price at the off, you are beating the market, whatever this month’s profit and loss says. The practice is a bit more work: you need to note the closing price for every bet, and decide what counts as the close (exchange price a minute before the off, best bookmaker price, or something else).
Does anyone here do it? How? Spreadsheet, odds-comparison history, something automated? And has it ever told you something your results had not?
Background if the idea is new: see the section on CLV in our records article.
