Event manager Kylie Kahukiwa said she managed the Fight for Life Facebook page, and saw how much interest there was from the public.
“Registration opened at 9am on Monday and we've already got a lot (40 as of yesterday morning).”
Tthe club had grown significantly and required significant fundraising events to help pay for travel expenses to compete.
Registrations are open to Tuesday, August 24.
A trial night will be held later this month to gauge skill and fitness levels for the fighters' safety, and to help set up evenly-matched fights.
The event is not associated with Fight For Life Ed, which raised funds for the Life Education trust, and has not been held since 2018.
Life Education Trust national chairwomen Pat Seymour said there was no confusion about the similar names of the event and wished Patu Tahi “all the best for what was a successful event in Gisborne”.