Recently been reviewing my avg pace stats on runs and am trying to understand why often my runs may show a pace of say 3:35m/km while the avg pace will show 7:22m/km. I have tried this several times and with others who did the same runs as me but their stats show as their run ave pace. i.e. if 3:35, show as 3:35. Any insights to understand how this feature works is appreciated. 

Thanks