The pilot reported that, during takeoff on a 2,000 ft grass runway, "the airspeed indication was not showing a comfortable amount of increase." He aborted the takeoff, applied brakes, but the airplane overran the runway. The left wing impacted a pole and the airplane came to rest in the brush near the runway.
The airplane sustained substantial damage to the left wing.
The pilot reported that there were no preaccident mechanical failures or malfunctions with the airplane that would have precluded normal operation.
The pilot reported that, about the time of the accident, the wind was light and variable at 3 to 5 knots. The airplane was departing to the north.