Season chicken with salt, pepper, and garlic powder.
In a small bowl, mix ketchup, mustard and brown sugar.
Wrap each chicken thigh with bacon securing with toothpicks.
Baste the bacon wrapped chicken with the ketchup mixture.
Heat grill to medium-low heat, add the chicken and close the lid.
Cook for about 7 minutes until bacon is crispy and chicken is golden. Flip chicken over and cook for another 5-7 minutes. Check internal chicken temperature to ensure it is at least 165 degrees.