“Mudderella,” the all-female sister event to Tough Mudder scheduled for Saturday, Sept. 6, is relocating from Massachusetts to Westbrook.

Tough Mudder took over Sunset Ridge Golf Links in Westbrook last weekend, where the golf course off Cumberland Street will play host to Mudderella, as well.

Bill Baker, Westbrook’s assistant city administrator for business and community relations, said Friday that Mudderella has some 11,000 participants registered for the one-day event, which is more than last weekend’s two-day total of some 9,000 for Tough Mudder.

Mudderella has now been rescheduled three times, first from Kimball Farm in Haverhill, Mass., to the nearby Amesbury Sports Park in Amesbury, Mass., and now to Westbrook.

Baker said that upon hearing that event organizers were having difficulty with their current venue, he reached out to offer Sunset Ridge as an alternative.

“We had a full day to respond to their needs, and we were able to do that,” he said.

In a press release Friday, Mudderella officials said the owners of Amesbury Sports Park lost the rights to their property due to pending legal problems, and “were not informed of this possibility.”

“We want you to know how crushed and disappointed we are to make changes of this scale so close to the event. But we are committed to providing the life-changing experience you deserve,” the release said.

Due to the sudden change in venues, Mudderella officials have offered participants free parking, as well as free transfers to future Mudderella events if registered participants are “unable or unwilling to travel to Westbrook.”

The 11,000 participants may dwindle, however. Following the announcement Friday, many people posted frustrated comments on the event’s Facebook page, requesting full refunds in response to the venue change. Many said the change gives too short notice and increases travel times.

Baker said the Tough Mudder course, which was in the process of being broken down this week, has been conceptually redesigned, but is also shorter.

Mudderella events are described as muddy, 5- to 7-mile obstacle courses that are non-competitive and designed by women. Whereas Tough Mudder raises funds for the Wounded Warrior project, a veteran’s support organization, Mudderella fundraises primarily for Futures Without Violence, a domestic violence prevention non-profit.

Baker said that due to the high number of contestants, Scarborough Downs will also be used as a parking location, in addition Idexx Laboratories in Westbrook and the Maine Correctional Center field in Windham, both used for the Tough Mudder.

He added that in response to a perceived lack of foot traffic downtown from Tough Mudder, he’s hoping to invite downtown restaurants to sell prepared food at the Mudderella event.

Next Saturday is already booked in downtown Westbrook, where BikeMaine 2014 will feature a closed Main Street from noon-5 p.m., and welcome 300 cyclists to the city.

“The Tough Mudder event didn’t have a negative impact on traffic or cause any problems,” Baker said. “Now instead of 400 people and spectators, we have 11,000 people and spectators.”

The release states that participants will receive detailed parking directions by 2 p.m. on Wednesday, Sept. 3.