No Scorecard with Longest Drive that I'm trying to delete

Hello,

In my Garmin Golf club statistics, it is showing that my longest drive is 329 yards (see attached).  That would be a dream at my ripe age of 71.   

My actual longest drive, which is shown on a scorecard at a local course is 259 yards (see attached).

But after reading other posts that have similar issues, and following those instructions, I have no scorecards on any course that has been recorded by Garmin with my CT10 club sensors that shows a 329 yard driver.  So, my question is, how do I remove that 329 yard driver shot from my club statistics if there are no scorecards from any course that shows that shot?  

Thanks for any help/advice.