The [metrics values](#metrics-explained) on the ROC curve display might not always match those shown on the Leaderboard. For ROC curve metrics, DataRobot keeps up to 120 of the calculated thresholds that best represent the distribution. Because of this, minute details might be lost. For example, if you select **Maximize MCC** as the [display threshold](threshold#set-the-display-threshold), DataRobot preserves the top 120 thresholds and calculates the maximum among them. This value is usually very close but may not exactly match the metric value.