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How can I use a betting exchange to identify bets with positive expected value?

1 Answer

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Betting exchanges like Betfair are useful for identifying value bets because they reflect the wisdom of the crowd, providing a more accurate gauge of the true odds of an event. By comparing the odds offered by bookmakers to those on the exchange, you can spot discrepancies where the bookmaker's odds are higher. For instance, if the exchange shows odds of 4.0 for a runner, but a bookmaker is offering 5.0, this indicates a positive expected value bet on the bookmaker's site, as you're getting better odds than the market suggests.
Question2Answer fatal error:

Reading one value from empty results

Stack trace:

require() in index.php:27
require() in qa-index.php:189
qa_output_content() in qa-page.php:53
html() in page.php:359
body() in qa-theme-base.php:271
body_content() in qa-theme-base.php:391
main() in qa-theme.php:264
main_parts() in qa-theme-base.php:727
main_parts() in qa-base.php(720) : eval()'d code:51
main_part() in qa-theme-base.php:836
a_list() in qa-theme-base.php:882
a_list_items() in qa-theme-base.php:2282
a_list_item() in qa-theme-base.php:2290
a_item_main() in qa-theme-base.php:2311
a_item_content() in qa-theme.php:554
getVideoIdFromDb() in qa-base.php(720) : eval()'d code:42
qa_db_read_one_value() in qa-base.php(720) : eval()'d code:73