You're not really going to get any stronger in one week so focus more on neuromuscular kind of stuff.
For example: 600, 400, 200, 100, 100. Walk a lap between the 6, 4, and 2. Walk half a lap between the 100s. Go race pace or slightly faster via a kick at the end on the 6, 4, and 2. Go faster on the 100s.
Some people like to do anaerobic workouts before a big race and some don't. Some such workouts might be: a 2x(100, 200, 300, 400) at race pace with a fairly short recovery; or a 6x200 at faster than race pace with a very short recovery.
Just so you know who's giving you the advice--I'm not a coach. My knowledge comes from reading lots of books, a few college courses on physiology and training, and reading this site a lot. This is just one perspective.