Today's greyhounds selections. We run the rule over Wednesday's greyhounds action and pick out our best bets and race -by- race selections. 5h Greyhounds. The greyhound racing industry treats dogs like running machines. Learn how you can inform others about putting an end to this cruel and useless sport. Greyhound racing is an organized, competitive sport in which greyhound dogs are raced around a track. There are two forms of greyhound racing, track racing History · Life after racing · Criticism · By country.