What's going on here then? Total climb 1307 MTS? Cambridge is, of course, completely flat, especially so along the river bank. Even the climb for each KM is way out and doesn't equate to 1307...
Runkeeper having a bonkers moment.: What's going... - Couch to 5K
Runkeeper having a bonkers moment.

maybe it's 1307 millimiters

I blame Apple who built the receiving device and NASA who built the transmitting device for the GPS signal

Crumbs! According to the little climb icon you were in the Alps.

You are really starting to get out to some distance!! Good on you.
I'm trying to do some useful stuff at the same time, this run was to my docs surgery to collect a prescription. It's a bit of a push, a tad further than feels comfortable, but then I find going back to a shorter run feels easier.

Put your cursor on the green elevation graph and it will tell you what it has measured at each point along the way. -- but obviously something wrong . Have you noticed this aberrant behavior before??
Yes it has done some weird things before. I think some of those spikes are where I ran under bridges, but Runkeeper has kind of jumped up to take the elevation of the bridge.