Your top results displayed on the Strava website are a selection of three or four achievements from an activity that we believe tells the best story of your activity. Your top results may include your performance goals, segment achievements (including KOMs/QOMs/CRs and top 10s), and Best Efforts.
Please be aware that if this is your first time running this distance on Strava, you will not see the PR displayed on the activity itself; however, you will see the time and activity in your profile statistics. At this time, there is no way to adjust which achievements are displayed as your top results.