Pilot reported a runway excursion.

Attributes
ACN	1745649
Time
Date	202006
Local Time Of Day	0001-0600
Place
Locale Reference	ZZZ.Airport
State Reference	US
Environment
Flight Conditions	VMC
Light	Daylight
Aircraft 1
Make Model Name	Amateur/Home Built/Experimental
Operating Under FAR Part	Part 91
Flight Phase	Landing
Route In Use	Visual Approach
Flight Plan	None
Person 1
Function	Single Pilot
Qualification	Flight Crew Instrument
Experience	Flight Crew Last 90 Days 8 Flight Crew Total 838 Flight Crew Type 55
Events
Anomaly	Ground Event / Encounter Loss Of Aircraft Control Ground Excursion Runway

Narrative:

Upon landing and during rollout; went left of center line and did not have all power out (throttle not all the way back). This caused me to be unable to maintain centerline and I committed to the grass on east side of runway to avoid a groundloop or over correction. No damage; no injuries and was able to taxi back to runway and all the way to hangar without incident or signs of damage.

Original NASA ASRS Text

Title: Pilot reported a runway excursion.

Narrative: Upon landing and during rollout; went left of center line and did not have all power out (throttle not all the way back). This caused me to be unable to maintain centerline and I committed to the grass on East side of runway to avoid a groundloop or over correction. No damage; no injuries and was able to taxi back to runway and all the way to hangar without incident or signs of damage.

Data retrieved from NASA's ASRS site and automatically converted to unabbreviated mixed upper/lowercase text. This report is for informational purposes with no guarantee of accuracy. See NASA's ASRS site for official report.