GET A GAP . You need at least 15 seconds quickly. Less than that and any fresh rider in the pack can close the gap, pulling the pack or solo. If you are strong enough to get a gap of 15 or more seconds the pack needs an organized effort to catch back on. Even if its a small race, a solo breakaway gets cheers from the crowd.
Spectators love to see a solo effort.
Draw energy from the crowd and the announcer. Once you have made your move and laid your cards on the table, make it stick. Get into your time trail mode. Be efficient around the corners. Ride at your threshold or a little above.