A large group of gamblers that could number in the hundreds are manipulating the odds across racetracks in the USA. They will bet as much as 5000 on a specific horse and then methodically cancel the wagers...At the small harness tracks a 500 or 1000 win wager could make a horse 1-9 or 1-5. They are also betting the exacta pools as well. Beware....This will affect the publics wagers when they see a horse at 3/5 or 6/5 2 minutes or a minute to post...Invariably the horse is a stiff and will run out of the money....The gamblers will then box the tris or supers...they have done this with as many as 4 horses in a race...