When the success rate prediction of removing double low-probability option exceeding 65%, the pre-warning will be triggered.

Trigger conditions: when the statistical probability of core similar odds exceeding 65%, and the number of matches 20, the pre-warning will be triggered.
Prediction direction: high probability of one of win/draw/loss.

Trigger conditions: when the statistical probability of core similar home team losing odds exceeding 75%, and the number of matches 20, the pre-warning will be triggered.
Prediction direction: the away team has a very high probability to win.