The contenders include three ponies and a single member of the race of Griffons.
1)Derpy, female Pegasus pony, resident of Ponyville, and indeed sometimes called "Muffins"
2)Pinkie Pie female Earth pony, resident of Ponyville, employee of Sugarcube Corner, and member of the Mane Six
3)Sugar Belle, female unicorn pony, resident of Our Town, former subordinate of Starlight Glimmer, a real "dark horse" contender
4)Gustave le Grand, male griffon, the only non-pony in this muffin baking contest
The winner is whomever the judges decide who has baked the best muffins.
The judges are Prince Blueblood, Mayor Mare, Cheerilee, Sheriff Silverstar, Little Strongheart, and Fancy Pants.
The contest takes place in Canterlot.
Each judge grades the muffins of each contestant on a scale of 0 (lowest) to 5 (highest).