Reading between the lines. The past performance information for each horse in a race is there in black and white for everyone wagering on the race to follow. The only way you can out-handicap the competition is if you can read between the lines. As many as 10 of a horse's past races are listed by date beginning with the most recent race. Conversely, look for a history of regular layoffs with an immediate return to peak form.
Weather can change a track's condition quickly.
A horse that performs well at short distances could fade during a longer race. And conversely, a horse that breaks slowly but performs well in the stretch may need the extra distance to win. In some cases, American Quarter Horses, which have not been top performers at short or long sprints, may become competitive at 870 yards. Maiden, Speed Index, Trial, Claiming, Allowance, Handicap and Stakes. You'll find a more complete description later and in the glossary.