For those of you with little or no creativity this one is going to prove to be more difficult than it needs to be. Find an odd object---atlas stone, keg, sand bag, field stone, friend, fire hydrant, anvil---carry it for 400M. Try to pick an object that is close to your body weight. Bonus points for picking something that is over your weight.
Post time and loads to comments. Have fun with this one. Challenge your creativity and use as many drops as needed.