Monday, October 21, 2013

Time Distance And Fatigue

Notwithstanding the strengths and weaknesses of the dosage approach to handicapping, it is worth reviewing the excellent article by Steven Roman on speed-stamina profiling. Looking forward to the Breeders Cup at Santa Anita, one could consider generating dirt and turf course profiles (based on track records at different distances) to provide insights into the challenges faced by European shippers. Going further, one could profile those shippers (based on best performances at equivalent distances in Europe) to identify live-longshots for exotic plays. Obviously, I am glossing over the difficulties of generating meaningful numbers using winner final times, beaten lengths, varying track configurations, and qualitative track conditions. Nevertheless, our goal should be to look for live contenders to fill tickets and not on demanding mathematical accuracy!

Friday, August 09, 2013

Beta-Binomial (Wins And Losses)

In trading sports events, it is necessary to continually update one's opinions conditioned on new information. In many sports, the only information available is in the form of wins and losses. In that context, two technical articles worth reviewing include the following excellent contributions - Regression To The Mean And Beta Distributions, and Market Efficiency and Bayesian Probability Estimation via the Beta Distribution.

Tuesday, April 16, 2013

Scripsi Exposui Feci

As the Latin triple asserts: Scripsi, Exposui, Feci ("I wrote, I explained, I did"), the trading posts below are not ivory tower musings but are the product of real-world experiences, though obviously not in that order.

Tuesday, March 19, 2013

Antifragile Trading (Small Losses, Big Gains)

Nassim Taleb’s latest book, Antifragile: Things That Gain from Disorder, defines a new concept, Antifragility. Operationalizing this concept in the world of sports trading would mean creating an approach that is explicitly designed to benefit from market volatility. In other words, an antifragile trading system would be characterized by a procession of small losses periodically punctuated by large gains - for example, live longshots. However, nobel laureate Daniel Kahnemann, Thinking, Fast And Slow, would point out that the pain endured by a succession of small losses will not be emotionally compensated by an iteration-ending large gain. Obviously, most humans are too fragile to handle antifragility!