Flight Crew Private
Flight Crew Last 90 Days 24.4; Flight Crew Total 104.5; Flight Crew Type 36.7
Ground Excursion Runway; Inflight Event / Encounter Loss Of Aircraft Control
Flight Crew Regained Aircraft Control
Aircraft; Human Factors
Upon landing I noticed the aircraft veering to the left.  I over corrected to the right with right rudder.  The aircraft started spinning and ended up veering into the grass off the runway.  I was able to taxi off the grass [back] onto the taxiway.  No damage occurred to aircraft or runway and there were no injuries.
A M-20 private pilot lost control during the landing roll; spun and departed the runway into the adjoining grass.  After coming to a stop with no injuries or damage the reporter taxied onto a convenient taxiway.