The Wisdom of Crowds meets the Race Track
In the Guardian a couple days ago there was an interesting article highlighting the fact that since the rise of Betfair (the leading online sports trading exchange), the betting strategy consisting of backing the favorite has outperformed most other strategies or tipsters.
“The market has always been a fair guide to the relative chances of the horses in a race, but Betfair - which also provides a valuable guide to which horses are “live” from as early as the evening before racing - has pulled everything into a tighter focus.”
This is analogous to the index outperforming active fund managers in financial markets.
By creating a true two-way market with thousands of participants, Betfair harnesses the wisdom of the crowd to ‘find’ the price at which the favourite really is the probability adjusted favorite. Information assymetry is tempered and the ‘game’ is now fair - ie the ‘house’ no longer has a structural advantage. There is no ‘house.’
Which is why I guess the incumbent traders (bookmakers) in the UK and especially Australia have been so shrill with regards to Betfair’s arrival on the scene. They are living the post-Google paradigm already and finding it uncomfortable. Ironically, in the short term Betfair has probably helped their business by creating more liquidity, hedging possibilities and at least for now, attracting a new set of traders to these markets.



