Organizers of a mud run for brainiacs are at it again, this time creating a post-Thanksgiving "Turkey Hunt" on a Manchester Township farm.

The second "CerebRun" will range from 5 to 7 miles, depending on whether participants can correctly answer some math and word questions as they run along.

The event mixes mental and physical challenges, with multiple routes to the finish line and participants suffering tougher obstacles and longer runs for incorrect answers to questions posed along the way.

There will be 15 obstacles, including a wall climb and mud mounds.

Turkeys: Switching it up for the holiday theme, people who want to be "turkeys" will start the race with two flags around their waists. Turkeys will get a two-minute head start into the obstacle course, after which a group of "hunters" will be unleashed.

The hunters must hunt down the turkeys, plucking their flags and finishing the course with as many flags as possible.

There are numerous prizes for winners.

Organizer Jeff Neal, who held the first mud CerebRun run in Lower Windsor Township in April, said he was inspired to hold another event because thousands of people participated in or watched the first.

Participants must be 14 years old or older, and registration ranges from $80 to $90.

The race will be held at 8 a.m. Saturday at Rexroth Farms, 1940 Bowers Bridge Road in Manchester Township.

Admission is free for spectators. To register, visit http://www.cerebrun.com/cerebrun-turkeyhunt.

-- Reach Christina Kauffman at ckauffman@yorkdispatch.com.