Basic winter century of CCW loops. BUT: 1. At DD stop, failed to restart computer for lap 2 until past Hugh Cargill Way. Phone showed add 2.3 miles and 10:30 So the Lap and Segment data for the first one after DD is not shown. 2. At Rt 2 batteries died hard. Went to Waltham St in Wayland, out and back a bit and then home. Phone from Rt 2 to end was 6 miles and 32 minutes 3. The temp data is misleading because I took the Garmin in each time I stopped to help recharge the battery. Evidently, not often enough. NB - Phone was 8 miles low at first DD stop after lap 1. Don't know why. But Phone data was adjusted. Will use Garmin corrected answers. On Lap 5 rode with Jack Donohue and Walter Frank from Middlesex School on Lowell Road to intersection of 4 and 225 at gas station.