Being in the mindset that you are going to win the race, no matter what, gives you a huge mental advantage. If you keep that in mind, you wont let people push you out the way, and you wont hesitate when the moment comes. If you cant sprint, then finish alone. Seriously, if you know your not a sprinter, then take of on either the last lap, or with 5 to go. At the 5 to go mark, there are a lot less peolple willing to work because they all want to save themselves for the sprint, and if you take of at the right time on the last lap nobody will go because their all concerned they wont have the energy for the sprint. Your going to have to work, and its going to hurt. Keep at it and you'll win. Seated attacks are better as well. When you stand the instant reaction is that your trying to break, and then people will try and chase you down. If your seated, people are a little more confused and will think your just trying to get to the front or are just putzing around, and your more likely to get away. Give that a shot.