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Showing posts with the label ROI

Overround / Over-round

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The editor of this blog likes to eschew obfuscation and espouse elucidation, and a couple of issues about "over-round" have been annoying me. First of all, should the word be "overround" or "over-round"?  Search the web, and both spellings can be found. Not the biggest of concerns, but without the hyphen, Blogger underlines it in red although MS Word has no problem with it. Since I have an aversion to anything red, my preference is to use "over-round".  But the bigger issue is how to use the term accurately.  I have seen some sources refer to an over-round of, say 103%, while other sources use 3% or 1.03.  Logically, using the 3% / 103% as an example, the bookmakers' round is 103%, while the OVER-round is the 3%, since a 100% round would be a fair book. My bible for all, or at least many, things betting related is Leighton Vaughan Williams' Information Efficiency in Financial and Betting Markets and here the spelling is "over-round...

Lost In France 101

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With 101 games remaining to be played, the French authorities decided to call it a season for Ligue 1 and unlike other leading countries decided not to go down the 'empty stadium' path. Of the top five leagues in Europe, Ligue 1 is traditionally the lowest scoring, and this season was no exception with an average per game of 2.52 goals and, in complete contrast to Germany, Away teams averaged their lowest total since 2010-11 with just 1.03 goals per game. Away teams in Bundesliga.1 averaged 1.55 goals per game this season, the highest of the top leagues since at least 1993-94 where my records go back to. As a result, the Away win percentage at 37.58% was also the highest. Low goal scoring of course means a higher probability of the game being a Draw, but in Ligue 1 the markets are aware of this. Twenty matches actually had the Draw priced at shorter than 3.0 this season, generally not a profitable range but this season you would have made 0.68 units profit. Of the 26 qualifiers...