The pilot reported that he made a normal approach and landing at Lenhardt Airpark on runway 2. He followed his standard landing procedure for the airplane, landing on the main wheels and holding the tail off the ground. He stated that as the tail lowered, he would normally begin braking while pulling back on the control stick to keep the tail down. The pilot indicated that he believes he began braking slightly early, before the tail was firmly on the ground. As the airplane decelerated, the tail rose until the propeller impacted the ground. Thereafter, the airplane nosed over and stopped in an inverted attitude. The pilot indicated that the airplane and engine had no mechanical failures or malfunctions during the flight.