One other thing to toss around (related to what I said previously about large margins and loose front runners in slow paced races) is that closers tend to have their moves timed to the horses in front of them rather that blowing fields away. So if a surface is tilted towards closers, you might get smaller average winning margins for that reason.
CJ's data is suggesting that rather than pace being the dominant factor in smaller margins on turf, it might be running style. And if I am correct, the wider margins in slow paced dirt races might be the more frequent loose leaders blowing fields away. That happens less often on turf.
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Last edited by classhandicapper; 01-07-2015 at 04:55 PM.
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