Incident Overview
During the fourth landing roll of the day, the pilot of a tailwheel-equipped biplane reported that the airplane "fish tailed" to the right and directional control could not be maintained. Subsequently, the airplane ground looped to the left on the runway.
Damage and Sequence
The right main landing gear collapsed as a result of the ground loop, and the lower right wing struck the ground. Substantial damage was sustained to the lower right wing and wing strut.
Pilot Report
The pilot stated that there were no mechanical failures or anomalies prior to or during the flight that would have prevented normal operation.