Analyzing a player's effectiveness in tiebreakers involves examining several key factors, including their overall win-loss record in tiebreak situations, performance metrics such as first serve percentage, unforced errors, and points won on serve. It's also important to consider the player's mental toughness and ability to handle high-pressure situations, which can be influenced by their experience and past performances in critical moments. Additionally, comparing their tiebreak performance against different opponents and in various conditions (like surface type and tournament level) can provide insights into patterns or trends in their play. Advanced statistics, such as their tiebreak win percentage relative to their overall match success, can further illuminate a player's effectiveness and adaptability when matches hinge on closely contested scenarios.