I can see the best marathon time already, both on the webbrowser and in the app.

My Metric Marathon stats are not listed. This is not a full marathon- it is 26.2km- the Chester MBNA Metric Marathon. It isn't included at present but I hope it will be. 

Metric marathon is 42.2 km. A race with length of 26.2 km is a fun way to set a distance for sure but it's not really a standard distance in athletics I’m afraid...

Sorry, I thought this was about the usual marathon distance in metric units.

The MBNA Chester Metric Marathon of 26.2km is a recognised race distance and was acknowledged on the actual strava personal distance where it gave the time taken to complete the race. 
If Strava does this then it is not unreasonable to request it be listed in someone's personal statistics. 
My hope is Strava will look into this. 

UK athletics recognise the 26.2km Metric marathon as an officially licensed road race. I hope strava will include them in personal stats at some point.