Several recent studies have found ways to reliably offset pace based on hill grade. We will use a best of breed algorithm to normalize your pace, so that the effort of runs on rolling hills can be compared to runs on flat ground and runs on steady inclines.
You just ran the run of your life. You woke up feeling incredible and you hit the trails. Your legs felt strong all the way through the finish and you somehow found the reserves to push hard into each and every hill. You come back, sync with Smashrun, and there is nothing notable. The pace is middling at best, because you have so many flat runs that were faster. But wait! You check out your "grade adjusted pace" and realize that this run was not only faster than all your other runs, it was a lot faster. Nice work!