Mile time

I ran a 6 minute 25 second mile today. I kept up with Sean Dore until halfway through the last lap and he kicked it up. I waited until about three quarters of the way through to all-out sprint. I caught up with Sean in the last five seconds or so and we finished in a tie. I can't seem to get a better time than six twenty to six thirty no matter how much I run. My last cross country meet is this Thursday.