Activities whose tracks are close to 30. Compared with 1307 of 1307 other activities so far.
2017-10-11 16:19 p50: 121 m
2017-10-31 13:29 p50: 148 m
2018-06-17 08:26 p50: 153 m
2018-01-01 14:13 p50: 167 m