She wasn't going there just to jog, she was going there to meet someone...someone who told Chandra to meet here there perhaps ostensibly to jog, but if jogging is your sole objective, you put on your jogging clothes, you go outside and jog. Period.
This was a set up.
Perhaps someone whose wife was at his apartment, so they couldn't go there, so how about a place halfway between their places where nobody would see them.