Councilor at Large Felix G. Arroyo raised $101,324 in August, more than double the amount his campaign brought in during any other month of his bid to become Boston’s next mayor.
Arroyo’s six-figure fund-raising achievement — a major threshold for candidates whom polls place in the mayoral race’s second and third tiers — was the sixth-largest among candidates who have reported their August fund-raising numbers to the Globe.
“It really does validate the kind of grass-roots work we’ve been doing,” said Doug Rubin, a senior campaign adviser to Arroyo.
All candidates were required to submit their monthly numbers to the Office of Campaign and Political Finance by the end of the day Saturday.
Arroyo’s haul was less than a third of the $383,000 raised in August by state Representative Martin J. Walsh, and less than the $245,077 raised by Councilor John Connolly and the $152,000 by Suffolk District Attorney Daniel F. Conley.
However, his August total puts Arroyo — who finished the month with $150,000 in cash on hand — not far behind his fellow city councilors Michael P. Ross and Rob Consalvo, who in August raised $126,248 and $117,000.
In a historically diverse and large mayoral field, the city’s first open contest in two decades, Arroyo also becomes the first of the six minority candidates to break the six-figure monthly fund-raising threshold.
Rubin compared Arroyo’s campaign strategy and late-in-the-race uptick in cash flow to another campaign on which he worked, the 2006 governor’s race in which the relatively unknown Deval Patrick was elected.
“In both cases, there was a lot of talk about how we couldn’t raise enough money,” Rubin said. “We had a game plan and a strategy, and we’re going to have enough money now to run the kind of campaign that we want to run.”
Charlotte Golar Richie, former state representative and the only woman in the race, had publicly declared a goal of raising $100,000 in August, but had yet to report fund-raising numbers as of early Saturday evening. It remained unclear if she would break into six figures.
While his campaign had not finished calculating final numbers, a spokeswoman for Bill Walczak’s mayoral campaign estimated that he will finish the month having raised $70,000 to $75,000.
Candidates Charles Clemons, Charles Yancey, and David James Wyatt did not respond to Globe inquiries about their August fund-raising.