[1] Ahmed qualified for the men's 50 m freestyle at the 2004 Summer Olympics in Athens, without having an entry time.
[2] He challenged five other swimmers in heat one, including 16-year-old Emile Rony Bakale of Congo.
He posted both a lifetime best and a Bangladeshi record of 25.47 to earn a second spot by four tenths of a second (0.40) behind winner Bakale.
Ahmed failed to advance into the semifinals, as he placed sixty-third overall out of 86 swimmers in the preliminaries.
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