I participate to a 10K in my city. Some advertisement were done on Strava before the race (you needed to be in the race club), and after (when the photos gallery and ending video were available). This was a very nice experience and in the aftermath, I was wondering how this could be improved.
My suggestion would be to offer race's organiser a convenient way to make a simple synthetic report of the race. (like the individual yearly Strava report, but focused on the race)
The reason for this is that sharing kudo, thought about the race, etc ...with people you run with during a race is part of the race and sometime a more pleasant one !
Some basic statistics, like the fastest km, the slowest km (on average), or colored GPS trace by average pace. Number of PR recorded could help follow up discussion between athletes in the comment...
Being a pacer (40'), I was also curious to know if I helped some of my fellow runners to achieve their goal. I guess I did based on a simple histogram of the final time, plus the number of mention to PR in the title of the activity, but a list of athlete who did achieve their PR, would have helped me to give some kudo to them.
Last but not the least, these insights could help next year runners to get prepared for the race and organiser to promote the race.