ing, and the horses of this breed are either trotters or 
pacers. The difference between trotting and pacing is 
this: In the trot, the diagonal pairs of legs move to¬ 
gether. In other words, the left rear leg and the right 
fore leg move together; then the right rear and the 
left fore together. The pacer moves the two legs on 
the same side together; then the two legs on the other 
side. 
Thus both the trotter and the pacer always land on 
two legs. In contrast to this is the Thoroughbred race 
horse, or runner, whose weight at various positions in 
the run is supported by one leg only. The pace is 
faster than the trot, while the run or extended gallop 
is the fastest of all. 
The greatest trotter today is Greyhound. Famous 
Standard Breds of former years were Flora Temple, 
Goldsmith Maid, Lou Dillon, and Peter Manning, 
while Peter Volo is the greatest living sire of this breed 
today. 
Standard Breds are about the same size as Thor¬ 
oughbreds, but are heavier in proportion to their 
height. They are bred for stamina and endurance as 
well as speed. The races for these trotters and pacers 
are divided into three heats; that is, the horse winning 
two out of three times is the winner of the race. It takes 
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