I use the GPX file to check for several challenges and I recognized, that some statistics in Project GC and my own statistics differ. The investigation finally found the bug. It's in the GPX file. Example: I attended the event GC8NNZ5 on 2022-07-21 but in the GPX file the date is 2022-07-22 Extract from GPX file:         <Groundspeak:log id="1112131979">           <Groundspeak:date>2022-07-22T00:00:00Z</Groundspeak:date>           <Groundspeak:type>