Profit and loss over a month is mostly luck. Closing line value is not, which is why every serious bettor and every bookmaker\u2019s risk desk uses it as the measure of whether an account knows something. This guide explains what it is, how to record it and what it tells you that your balance cannot.<\/p>\n\n\n\n
The closing line is the last price available before an event starts. By then every piece of team news is public, every large bet has been absorbed and every operator has copied every other. It is the market\u2019s best estimate of the true probability, and a large body of evidence says it is a very good one \u2014 better than any individual forecaster over a large enough sample.<\/p>\n\n\n\n
If you took 2.10 on a selection and it closed at 1.90, you beat the close: the market moved towards your view after you bet. If you took 1.90 and it closed at 2.10, the market moved away from you. The result of the match is a separate question.<\/p>\n\n\n\n
Why probability, not price<\/strong><\/p>\n\n A move from 10.00 to 9.00 is one decimal point and 1.1 probability points. A move from 1.50 to 1.40 is a tenth of a point and 4.8 probability points. Only the second column compares fairly across the price range.<\/p>\n<\/div>\n\n\n\n Positive CLV with a losing month means you are probably right and unlucky. Negative CLV with a winning month means you are probably lucky and will not stay that way. Bookmakers restrict accounts on CLV rather than on winnings, which is the strongest evidence available that it is the number that matters.<\/p>\n\n\n\n Most recreational bettors, measured honestly, sit a point or two below the close \u2014 the market knows more than they do, and the margin is on top. That is not a reason to stop; it is a reason to keep stakes flat, hold three accounts and take the best price every time, because line shopping is the one way to move that number without becoming a better forecaster.<\/p>\n","protected":false},"excerpt":{"rendered":" The one measure that predicts long-term results better than your profit and loss does.<\/p>\n","protected":false},"author":21,"featured_media":33830,"menu_order":8,"template":"","tags":[260,286,358],"spx_guide_topic":[486],"spx_guide_level":[375],"class_list":["post-38190","spx_guide","type-spx_guide","status-publish","has-post-thumbnail","hentry","tag-odds","tag-probability","tag-value-betting"],"_links":{"self":[{"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/spx_guide\/38190","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/spx_guide"}],"about":[{"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/types\/spx_guide"}],"author":[{"embeddable":true,"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/users\/21"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/media\/33830"}],"wp:attachment":[{"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/media?parent=38190"}],"wp:term":[{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/tags?post=38190"},{"taxonomy":"spx_guide_topic","embeddable":true,"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/spx_guide_topic?post=38190"},{"taxonomy":"spx_guide_level","embeddable":true,"href":"https:\/\/preview.sportpulse.anpsthemes.com\/betting\/wp-json\/wp\/v2\/spx_guide_level?post=38190"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}What it tells you<\/h2>\n\n\n\n