I think Jaade is asking not about how to run further, but faster. The key, Jaade, is to remember what running is. It’s not propelling yourself over ground, which many people seem to think. As a result, they pump their legs faster, but don’t really increase their speed.
Running is simply a controlled form of falling. Lean forward far enough, and you’ll need to take a step or fall over. Take steps at that angle, and lean a little farther, and you’re jogging. A little more, and you’re running. Simple stuff, move you’re legs, or fall on your face.
So, to get faster, you need to figure out the best way for you to get the best “lean” out of your body. Practice makes perfect, and by running more, you’ll eventually get a knack for what angle you need to be at, with no thought at all about it.
On a more conscious level, simply forcing yourself to lean your upper body forward can have dramatic effects on your speed. Try this on your own at first, nothing worse than falling in from of the team. It will probably take you a dozen sprints to find your limit.
The way to increase this speed is to strengthen the muscles that keep you from falling. Find a good sized, fairly steep hill, and run up it a few times. The muscles that burn/ache afterwards are the ones you want to focus on strengthening if you have access to a weight room. Then, it’s just a matter of continuously improving yourself.
Another (obvous) thing to do is lengthen your stride. The problem is, most people lengthen their strides without leaning forward properly, which means their legs are doing all of the locomotion. To be as fast as possible, you need to use your legs just enough to keep you from falling down. Large steps, combined with powerful legs and a good body angle may not make you an world record holder, but understanding the mechanics of it will keep you ahead of your teammates.