The crowded field doubles the number of candidates that ran for Denver's last open mayoral election in 2003.

Former State Sen. Chris Romer had the most cash to spend at the end of 2010 with $201,421 in his account. Romer's campaign had raised $228,359 by the end of the year.

Romer is followed in contributions by Denver Preschool Program Director James Mejia. Mejia raised $160,877, and has $120,924 on hand. His finance report notes $30,000 in personal loans to the campaign.

City Council Member Michael Hancock was $84 behind Mejia in contributions ending up with $160,793. Hancock's campaign has $172,241 on hand. His report also describes a transfer of $48,296 from his council account.

Denver City Council Member Carol Boigon said she had raised $109,030 and had $99,396 on hand. Her filing also said she had moved $56,432 from her city council account. Her council account included a $188,598 loan from the candidate.

Council Member Doug Linkhart raised $38,372 and noted $72,850 cash on hand. A relative loaned Linkhart $26,000 and the candidate loaned his campaign $39,000, according to the report.

Eric Jon Zinn, a tax lawyer, filed a report showing $220.23 in contributions, with $191.06 on hand.

Candidates had to file their campaign finance reports by Sunday. They are now required to get at least 300 signatures on petitions by March 9 to officially qualify for the ballot.

Denver voters will mail-in their ballots for mayor and other city council offices this year, as a cost-savings measure according to the Denver Elections Division, with ballots due by May 3. If no candidate receives 50 percent of the vote, a runoff election is scheduled for June 7.

(KUSA-TV © 2011 Multimedia Holdings Corporation)