Sounds like you are trying to increase both speed and distance at the same time. I'd alternate between fast 5km's (working to increase speed) and slower jogs (working to increase distance).
I struggle like mad to increase my pace though. So I may not be the best person to advise.
Thanks! This is what I'm trying to do, alternate the runs between a light jog and a fast 35 minute run to see if I can get closer to that 10km, on the light run I do a bit of interval but still I'm miles away.
Thanks! This is what I'm trying to do, alternate the runs between a light jog and a fast 35 minute run to see if I can get closer to that 10km, on the light run I do a bit of interval but still I'm miles away.