Step 1Heat the oven to 425 degrees.
Step 2In a small bowl, combine the tomato sauce, ketchup, sugar, vinegar and garlic powder until mixed well. Set aside.
Step 3Lightly spray a baking sheet with nonstick spray. Take one-half slice bacon and coat it in the sauce. Wrap the sauce-covered bacon around a shrimp and place it, seam side down, on the baking sheet. Repeat with the rest of the bacon and shrimp. Give them a quick mist with nonstick spray.
Step 4Bake in the oven until the shrimp are cooked through and the bacon is crispy, 10 to 15 minutes. Remove from the oven and cool slightly before serving.