[QUOTE=Slewdledo;7084651]
How many races - and what age - depends completely on the horse and its people.
Our best horse was a February foal who first raced in May. He went on to race 8 times at age 2 (won 2, including a stake, and 5 seconds), raced through age 7, retired sound after 58 starts, and is now a saddle horse. at age 13. They brought him up to the track as part of a “where are they now?” series our track is doing. He looked like he could’ve gone into the gate and won THAT DAY. 
My boss got in a 2YO in late May who had sold at Timonium 2YO in training sale. Usually the horses from the 2YO sales need time, but this one - a May foal whose birthday was 2 days before the sale - shipped cross country and went straight into training. He may or may not race this year, but he’s in training and doing just fine.
Our track has had to cut its stakes schedule due to lack of horses (and money.) This year there are three 2YO stakes for each gender and two open (either gender) 2YO stakes. The open races - one a sprint and one a route - are held on the same day, so nobody’s going to run in both.
On the flip side, I remember this horse’s 2YO season just made me angry. He was running SO often, short races, long races…they ran the little guy in EVERYTHING. And you can see he didn’t have much talent and didn’t race for very long. http://www.equibase.com/profiles/Results.cfm?type=Horse&refno=4474080®istry=T[/QUOTE]
What happened to him, do you know?