No. Y Nuguse, get your 800m & 1500m times down while your young enough to tolerate the intensity of 800m & 1500m training, always can move to 5000m later. There is no one clear dominate 1500m runner in the world at this time. J I looked like a beast at 5000m this summer. This web site is skewed toward 5000m to ultra gals & guys. This web site tells everyone to move up to the next event.