If you ever get the chance to read a detailed account of that battle, do so. It was amazing. About 3,500 US troops (mostly state militias) against over 12,000 seasoned British regulars. There were some amazing events and issues that turned what should have been an easy British victory into a route of the British by the American forces. In about 30 minutes of the initial heavy fighting, 19 MAmericans were killed and well over 3,000 British. That's when they broke and ran to get away from the slaughter.
Thanks for that!