With the election of a new Cape and Islands state representative days away, campaign finance reports released this week show Vineyard candidate Daniel Larkosh outspending his opponents three to one.

The committee to elect Mr. Larkosh, who won the Democratic primary, spent $31,200 in the period between August 30, two weeks before the Massachusetts primary, and Oct. 17.

The campaign has another $32,000 in outstanding liabilities, which include $22,500 in loans from Mr. Larkosh to his own campaign. Some of the liability includes money owed to the Coalition for Social Justice, a Fall River political action group that has backed Mr. Larkosh since before the primary, for conducting phone banks.

Since the primary his campaign committee has spent close to $21,000 on printing and postage for publicity material, including badges, bumper stickers and mailers and $7,800 on print and radio advertising.

In contrast, Jacob Ferreira an unenrolled candidate also from the Vineyard, spent just $1,500, principally on yard signs and bumper stickers.

Mr. Ferreira has loaned his campaign $2,500 since March. He raised another $4,700 from 30 donors, the majority of them Vineyard residents.

Meanwhile, Tim Madden, the unenrolled candidate from Nantucket, also has kept his fundraising efforts close to home. All but four of Mr. Madden’s campaign contributors are from Nantucket. Mr. Madden has loaned $10,000 to his campaign.

His campaign spent $7,300 between August 30 and Oct. 17, and has used another $4,900 of $11,600 on a credit card account in the past two months. Using the card, the committee to elect Tim Madden bought $1,200 in television advertising air time and paid close to $2,000 for printing and postage.

Candidate Melissa Freitag’s municipal employee status as history teacher at Cape Cod Community College has prevented her from personally soliciting or accepting campaign contributions. Her campaign has received $4,500 in allowed contributions since August 30; of that Ms. Freitag has contributed $2,500.

The campaign for Ms. Freitag spent $3,900 during the period between August 30 and Oct. 17, with $1,800 on advertising and $1,900 on print and postage.

Elsewhere this week, there was little abatement in the flurry of endorsements flying around Mr. Larkosh and Mr. Madden.

Mr. Larkosh has secured the backing of more than a dozen political action groups and unions, including the Marine Engineers Beneficiaries Association and Massachusetts Nurses Association.

This week his campaign announced the endorsement of a Massachusetts environmental organization, Clean Water Action.

Gov. Deval Patrick publicly endorsed Mr. Larkosh at a Falmouth fundraiser at Laureen’s restaurant in Falmouth earlier this month.

Other political endorsements for Mr. Larkosh include Cong. Bill Delahunt, Sen. Therese Murray, Sen. Robert O’Leary, and Reps. Matt Patrick, Cleon Turner and Sarah Peake.

Mr. Madden meanwhile has secured the endorsement of all three Steamship Authority governors in the district and 40 town leaders and residents here on the Vineyard.

This week the Cape Cod Times endorsed Mr. Larkosh while newspapers on both Nantucket and the Vineyard and in Falmouth have endorsed Mr. Madden.

The other two candidates have questioned the value of political, union and action group endorsements.

“Quite frankly the only endorsements I think are critical are the ones voters make on Nov. 4,” Mr. Ferreira told the Gazette in a recent interview.

With various forums and radio and television debates behind them, the candidates will focus on grass roots campaigning during the remaining days until the election, canvassing potential voters outside post offices and grocery stores across the district. Mr. Madden and Mr. Larkosh both said this week they consider the Vineyard the key battleground in a race that has little precedent since the district was formed in 1978.

Whatever the outcome, this election will provide a new Cape and Islands representative at the state house since Eric T. Turkington took office 20 years ago.