While new varieties are always arriving on the garden scene, an unblemished tomato that's true to type will always trump one with a cracked skin. But even perfection doesn't guarantee blue ribbons. There's more to it than that. Good excuses to limit the field come from contestants failing to follow the fair rule book. You'd be amazed at how many people get disqualified because of that.
Criteria can be very particular.
Standards and practices haven't been codified throughout the country. That's why knowing the rules of the fair you're shooting for is critical. Generally, entries should be true to type and free from damage by pests, disease, and handling. The Colorado State Extension office offers a class for aspiring judges that draws 10 to 15 people a year. While judges are occasionally challenged on their decisions, it's rare.