Sign Up
2,809,893
Lifetime Meters
7,846
Season Meters

Latest Challenges

Holiday Challenge November 27–December 24
January Revolutions January 1–31
Virtual Team Challenge January 1–31

View Challenges

Concept2 Blog

Dec 17 2025 Concept2 Year in Review: Moving Together
Dec 16 Holiday Season Erg Workouts
Dec 15 Two Decades of Concept2 Holiday Challenges and Counting
Dec 14 Twenty-One Holiday Challenges and Still Rowing

Ron Koldeweid

Log

Date Workout Score Ave Comments Action
11/04/20 5000m 19:29.2 1:56.9 View workout
11/03/20 22:11 4,957m 2:14.2 View workout
10/30/20 19:29 3,095m 3:08.9 View workout
10/30/20 30:08 7,645m 1:58.2 View workout
10/25/20 20:06 3,497m 2:52.4 View workout
10/24/20 30:00 7,526m 1:59.5 View workout
10/21/20 20:05 3,392m 2:57.7 View workout
10/20/20 30:00 7,634m 1:57.8 View workout
09/27/20 39:26 10,024m 1:58.0 View workout
09/27/20 20:09 3,250m 3:06.0 View workout
09/25/20 5000m 18:53.0 1:53.3 View workout
09/24/20 30:00 7,531m 1:59.5 View workout
09/24/20 20:07 3,243m 3:06.2 View workout
09/18/20 30:00 7,254m 2:04.0 View workout
09/18/20 20:04 3,325m 3:01.1 View workout
09/15/20 18:04 2,671m 3:22.9 View workout
09/12/20 30:07 7,177m 2:05.9 View workout
09/07/20 1:00 197m 2:32.2 View workout
09/07/20 1:00 198m 2:31.5 View workout
09/07/20 30:00 7,200m 2:05.0 View workout
09/07/20 0:11 8m 12:17.5 View workout
09/06/20 20:06 3,409m 2:57.0 View workout
09/04/20 2:18 33m 34:53.9 View workout
08/31/20 20:05 3,475m 2:53.4 View workout
08/27/20 20:03 3,233m 3:06.0 View workout