Comparing the latest odds with the peak period odds of the match(5 hours before the kick-off time), any of win/draw/loss odds changes abnormally.

Comparing the latest odds with the peak period odds of the match, when the odds of the away team winning rises abnormally and the odds of the away team winning in the 5 hours before the match is ≥0, the away team probably cannot win.

Comparing the latest odds with the peak period odds of the match, when the odds of the home team winning drops abnormally and the odds of the home team winning in the 5 hours before the match is ≤0, the home team probably cannot lose.