Australia vs Bangladesh
For most, the five-wicket win, in the second match of the tournament, was the biggest shock of all time.
"It's probably one of the biggest upsets in the history of the game," Ponting told a news conference.
Ponting said he would dissect the game, "my worst loss as captain", later on Saturday with coach John Buchanan in an attempt to try and make sense of it.
He accepted he had misread the pitch, on which he chose to bat when the track was at its most lively.
His side have now lost three games in six days, a Twenty20 against England, a one-day match against Somerset and now against Bangladesh.