More than 3,000 runners have already registered for the Dec. 2 California International Marathon.
That's a fast rate of early registration, according to John Mansoor, CIM race director.
"That is way ahead of last year's pace as of this date, probably 50 percent ahead of last year's pace," he said.
This year's race is the 30th CIM, which begins near Folsom Dam and ends at the state Capitol. The race has reached a cap of 8,000 marathon runners and 4,000 relay entrants each of the last three years.
Runners are drawn to the race for its fast times, in part because of a slightly downhill course and cool weather, although it can be rainy and blustery.
"More and more runners are realizing if they do want to run a personal best or run a Boston (Marathon) qualifier, CIM is the place to do it," Mansoor said in a news release.
Runners can register at www.runcim.org. The entry fee is $105 through Aug. 1 before increasing to $125. The relay entry fee is $120 per team through Aug. 1 before increasing to $160. High school teams can enter for $50 through Nov. 1.