Quote:
Originally Posted by classhandicapper
Biases are tougher to determine these days because because there's a more even split between dirt and turf (and now even synth) giving you smaller samples to determine what was going on. Adding to the confusion is that dirt surfaces seem to change more often during the day now than long ago (especially before major stakes) due to inconsistent track maintenance, water addition and evaporation, and surface composition. It's often a guessing game unless it's so strong everyone can see it. And if everyone can see it, the value is diminished.
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One thing I did notice at Santa Anita back in the day, on a day with dry track and no rain that day, they would water and re-harrow the track after the 4th race, only that one time during the card. You could often see a difference between races 1-4 and 5-9. Often I changed my late double selections biased on what I saw in races 5 & 6. I quickly changed that method when I threw out winners too many times and just started adding combinations. That of course lowered profits on winning tickets, but I cashed more to make up for it.
