Indianapolis Colts Offensive Formations Singleback Bunch Doubles Y Off Close Wing Slot Wing Tight Pistol Deuce Close Doubles Y Off East Tight Philly U Off Close U Off Stack Y Off Trips Shotgun Bunch Offset Bunch Open Offset Bunch Str Nasty Deuce Close Double Stack Doubles Off Close Wk Doubles Offset Doubles Z Close Empty Base Flex Flanker Close Normal Y Off Spread Y-Flex Wk Tight Y Off Wk Trey Open Trips TE Flex Trips TE Offset Trips TE Offset Wk U Off Trips Wk Wing Slot Offset Wing Slot Wk Wing Stack Wing Tight Nasty Y Off Trips Y Off Trips Wk Defensive Formations 4-3 Even 6-1 Over Over Solid Over Wide 46 Bear Nickel Double Mug Over Wide Big Nickel Over G Dime Rush Dollar 3-2 Mug Prevent 3 Deep Goal Line 5-3 6-2