Recommended combinations
American Rocket is the best horse in the game, and not Cat Food. The best Jockey is Chips McCoy and the best trainer is Harry Cheese. With this team you can earn over $100,000.
Walking Thunder is the best horse. Walking Thunder is fast, good on jumps, and has good stamina.
Winning races
To win short races, select a horse and trainer that has good speed.
To win longer races, select a horse and trainer that has good fitness.
Jockeys can be questionable and lose races on purpose. Select one that has good experience but not so dodgy.
If your horse is not winning enough races, change the jockey and see if it improves.