In a professional league championship, the winner is typically determined by the best overall performance across a series of games or matches. Most leagues utilize a playoff system, where teams face off in elimination rounds, culminating in a final championship match. Factors considered include head-to-head records, point differentials, and team statistics throughout the season. In some instances, tie-breaker rules apply to resolve closely contested matches. Ultimately, the team that demonstrates superior skill, strategy, and teamwork emerges as the champion, celebrating their achievement with trophies and recognition.