Heading into the final weekend of the campaign, Honolulu Mayor Mufi Hannemann has spent more than $550,000 since the Sept. 20 primary election, with television, radio and print advertising accounting for the majority of the expenditures, according to Hawai'i Campaign Spending Commission records.

From Sept. 21 until Oct. 20, Hannemann has spent $417,211.45 on television spots, radio airtime and space in the city's two daily newspapers.

While Hannemann has far outspent his opponent, as expected, his campaign says it is taking nothing for granted.

"The only polls that truly matter are those on Election Day. Until 6 p.m. on Nov. 4, our campaign team will continue to work hard and get our message out to the voters," said A.J. Halagao, Hannemann's campaign coordinator.

Hannemann's opponent, Honolulu City Councilwoman Ann H. Kobayashi, spent $110,847.92 during the same period, the majority of that on advertising. Kobayashi raised $118,684.

Hannemann raised $49,905 from Sept. 21 to Oct. 20 while he spent $566,583.90 during the same period. Hannemann spent more than $1 million between Jan. 1 and Sept. 20 as part of his campaign to return to Honolulu Hale for four more years.

During that same period, Hannemann raised $838,751.58 and spent $1,069.084.30.

"Mayor Hannemann is humbled by the overwhelming support he has received — politically, financially and emotionally — from labor, management, working families, community leaders and leading organizations. Most of the donations contributed have been $100 or less, demonstrating the widespread support he has received from the community," Halagao said.

Hannemann has a little more than $1.5 million remaining in his coffers.

Kobayashi raised $202,920.74 from Jan. 1 to Sept. 20.

She did raise more money than Hannemann during the two weeks immediately before the primary.

From Sept. 6 to Sept. 20, Kobayashi raised $83,015.50 while Hannemann raised $28,412.09.

The Kobayashi campaign has used social networking sites and an interactive Web site to bolster the few funds available for advertising. The campaign has spent little money on newspaper advertising and has spent more than $80,000 on television advertising since the Sept. 20 primary.

Honolulu City Councilman Donovan M. Dela Cruz, Kobayashi's campaign chairman, said a grassroots effort has more than made up for Hannemann's sizable fundraising advantage.

"We don't need a lot of money to illuminate the fiscal prudence and respectful governing that Ann will bring to Honolulu Hale," Dela Cruz said. "Our supporters are in the community and working very, very hard to spread the word that openness and transparency is coming to City Hall."