Notes
should have warmed up - started out too hard but felt ok. Then pushed it harder the 2nd mile and by the end of 2miles felt tired, so just ran 3rd mile easy, then last mile hard.
split, avg HR, end HR
6:08 (144) (166)
5:47 (172) (174)
7:04 (153) (146)
5:48 (170) (178)