I know I won't get BA because the answer before me was a lot more in depth, but 1500's/1600's are my favorite event. It really depends on the person and his style, but I'll tell you how I race them. The first 300 (1500) or 400 (1600) will go by really fast. The key point is to make sure you are not too far back from the leaders. No race is won on the first lap, but you can sure as hell lose it on the first lap. This should also be your second fastest or fastest lap. The second 400 meters is where you should try to maintain the same turnover as your first lap. This is where the race will most likely start to feel difficult. Try to push, but don't use everything yet. Think to yourself "maintain my stride". The third lap is by far the hardest of the race. If you are racing for position, this is where you want to make your move towards the front. Don't take the lead yet, but make sure you are within kicking distance. This should be the lap that uses the majority of your effort for the race, although it will most likely be slower than any other lap. The last lap is where you absolutely have to give it everything you have. As soon as the bell sounds, move up to the shoulders of the guy in front of you. With 300 to go, move to the right so you are able to pass him. Wait until about 250 and then make a quick stride in front of him and cut over before the turn. You want to make sure you have the inside here. About 150 to go is when you really have to turn it on. Let everything go. The guy behind you is most likely pissed, so you need to run with everything you've got. Last of all, make sure you don't slow down before the start line. I hope this helped. Good luck!