1. Too high cost: The use of Hawkeye system requires high cost, and the cost is borne by competitors. Although the Hawkeye system can improve the fairness and accuracy of the competition, the high input cost makes some competitors flinch, leading to the gradual disappearance of the Hawkeye challenge.
2. Technical upgrade: Many tennis matches use instant playback system, which can provide more accurate and convenient playback service than Hawkeye Challenge. Therefore, Hawkeye Challenge is gradually replaced by more advanced instant playback system.