MUD Run is back with a vengeance, with a massive $38,000 raised in ticket sales in four hours.
Event organiser Kirsty Appleton said while male registrations were up on the last years, the women still have the upper hand.
"The median age is 32 and most competitors are female," Kirsty said.
"All the single fellas - if you want to meet a lady it might be time to get down and dirty at the Mud Run!
"A lot of ladies are coming out for a dirty weekend," she added with laugh.
But while the event - held on March 12 next year - is a lot of fun, Kirsty said the aim to raise money for the breast and prostate cancer associations was no laughing matter.
"The fundraising goal for MRE2016 is to exceed the $55,000 set from the benchmark of MRE2014 with registrations reflecting an increased number of participants choosing to support the Just Giving online charity fundraising option," she said.
"For me personally it's about the atmosphere and the vibe - seeing the community come together."
There are currently 107 teams registered for the run, and Kirsty said a lot of the teams have close to, or more than, 20 members.
"There's a lot of people from out of town - more than 58% of competitors are from out of Emerald," she said.
"At this stage there's definitely Rocky, Moranbah, Blackwater, Gladstone and Capricorn Coast - Mackay, Proserpine and up in Cannonvale way."
Kirsty said the travelling mud runners always provided a big boost to the local tourism and accommodation industries.
"Obviously we've got the economic factors - tourism and accommodation," she said.
"We have got people booking in and not knowing what time their wave times will be. Most people will probably be booking in on the Friday night.
Last year's Mud Run was held on a very hot day, and Kirsty said moving the date came down to hoping for a better temperature for the runners.
"That's another reason why we reviewed the dates. March will be more accommodating climate-wise," she said.
Tickets are still available.
For more information, see the Mud Run Emerald Facebook page.
Update your news preferences and get the latest news delivered to your inbox.