Sign Up
7,029,635
Lifetime Meters
182,207
Season Meters

Last 30 Days Activity

Latest Challenges

Holiday Challenge November 28–December 24

View Challenges

Concept2 Blog

Nov 20 Ergatta Releases Wavelength, Their New Flagship Game
Nov 19 Six Partner Workouts to Get You Moving
Nov 4 Strength Meets Innovation: Introducing the Concept2® StrengthErg™
Oct 31 The Power of Strength Training for Rowers: Enhancing Performance, Erg Scores, and Longevity

David Koffman

Log

Date Distance Time Pace Comments Action
01/04/17 7,540m 35:04.2 2:19.5 View workout
01/03/17 4,000m 15:56.4 1:59.5 View workout
01/01/17 106m 1:22.8 6:30.5 View workout
01/01/17 10,024m 47:36.9 2:22.5 View workout
12/29/16 158m 1:19.0 4:10.0 View workout
12/29/16 8,161m 37:59.8 2:19.6 View workout
12/28/16 8,000m 33:55.6 2:07.2 View workout
12/27/16 3,640m 17:05.3 2:20.8 View workout
12/27/16 1,472m 6:58.9 2:22.2 View workout
12/26/16 148m 1:07.6 3:48.3 View workout
12/26/16 4,000m 16:14.6 2:01.8 View workout
12/25/16 1,075m 5:08.1 2:23.3 View workout
12/24/16 10,010m 45:29.0 2:16.3 View workout
12/23/16 5,000m 20:44.2 2:04.4 View workout
12/22/16 7,518m 34:45.6 2:18.7 View workout
12/21/16 7,500m 31:37.7 2:06.5 View workout
12/20/16 8,037m 36:41.4 2:16.9 View workout
12/19/16 4,000m 15:34.7 1:56.8 View workout
12/19/16 1,024m 5:18.7 2:35.6 View workout
12/18/16 1,016m 6:13.1 3:03.6 View workout