Joakley, Baby Puke makes a great point.
Endurance Racing is a LOT shorter than Endurance Training. Endurance Racing (long scratch races, points races, tempo, etc..) are slightly slower and are sub-maximal and provide just a little more volume per race than some sprinters can handle. So, I usually get dropped, but I get a great workout in the process.
Remember, your weekly training races are not the big show...or even the medium show. They are training races that should be integrated with the rest of your training.