The major bookies who have taken over oddschecker obviously do not want you to see prices being cut leading to more money on the informed horses so are giving a stupid cut down interface showing only price moves on the favourites ... guess what you are taking short prices AFTER favourites contract in price leading to shoyte value all the way.
Boycott the sheisters and visit sites such as bestbetting .com instead to see the moves on outsiders they dont want you to see on oddschecker. It doesnt have the ideal interface either but at least you will be registering your protest at being treat like a dunce.