Nasheed, 46, had about 45 percent of vote, incumbent Mohamed Waheed Hassan, 60, was at six percent.
Former president Abdul Gayoom's half-brother, Abdulla Yameen, appeared to have reached a second round against Nasheed with 26 percent of the vote.
According to news.com.au, wealthy resort owner Gasim Ibrahim was a close third with 25 percent.
It is not known when official final results would be issued.
With no candidate topping 50 percent, the top two vote-getters will go to a runoff on September 28.
Nasheed of the Maldivian Democratic Party is eager to regain the post he said he was forced to give up at gunpoint in February 2012 during a period of intense political turmoil, the report added.
--ANI (Posted on 09-09-2013)