Group of 10-12 people stand in 2 lines about 8' apart with 6' between people. Everyone holds their hands up to spot. The last 2 people are "stoppers".
The performer stands blindfolded at the start, and with hands up, tries to run between the lines.
The "stoppers" touch (catch) them at the waist to finish. Side spotters push from the shoulders or move away from the performer while protecting their passage.
From the Ghost Ranch Ropes Course Manual, by Dr. Sylvia Shirley.