Recreational bettors often fall into several common traps that professional bettors skillfully avoid, primarily due to a lack of experience and discipline. One significant mistake is betting with their emotions or biases, such as wagering on favorite teams or players regardless of the odds or matchups, which can lead to poor decision-making. They may also chase losses by increasing bet sizes after a losing streak in hopes of recouping their losses, a practice that can quickly deplete their bankroll.