SC-- what I do is take a first pass (3 minutes a race tops), seeing whether something jumps out at me, like a horse I really want to bet on, or more likely, a favorite I want to bet against. If there is, I mark it (write the race # down on the outside of a hardcopy set of sheets, in my case). I generally end up marking about half the races, and I then go back and focus on those, which cuts down considerably on the time pressure. If I end up with a dead period between races I marked, I might go back and take another look at the others, just for action-- but I\'ll bet less, unless I really missed something big, like a horse I thought would be bet is 20-1.
The larger issue is that of multiple race bets, and I\'m not a fan. Yeah, you can hit a home run, and if you are only looking at one track, you could make a case for it. But the problem is you end up tying horses you like to races where there is no edge, and diluting your bankroll and focus-- unless several races I marked are back to back (or maybe 3 out of 4), I\'m a lot better off playing the situations where I have an edge.
Here\'s one for you-- I don\'t play horses, I play races. That often means playing AGAINST horses-- I would recommend that anyone who has not already take a look at the \"betting guidelines\" on this site. I know it is a pain in the ass, but if you actually ask yourself what you like about each race as an exercise, I think you can learn a lot, and avoid a lot of grief. Try it-- out loud.