Sign Up
3,323,524
Lifetime Meters
384,631
Season Meters

Last 30 Days Activity

Latest Challenges

Mud Season Madness March 1–31
World Erg Challenge March 15–April 15
April Fool's April 1–15

View Challenges

Concept2 Blog

Mar 18 Women Who Move Us Forward: Bari Dreissigacker and Judy Geer
Mar 17 Kelsey Pfendler: A River Guide’s Journey to a Solo Pacific Crossing
Mar 16 Strength On and Off Duty: McCall Hoyt
Mar 12 Molly Vollmer: Strength in Every Season

Jon Derderian

Log

Date Workout Score Ave Comments Action
10/24/25 3:08 518m 3:01.5 View workout
10/24/25 v250m/0:45r...6 1,500m 1:54.7 View workout
10/24/25 2:24 520m 2:18.8 View workout
10/23/25 4:55 1,018m 2:25.1 View workout
10/22/25 4:42 1,019m 2:18.4 View workout
10/21/25 4:24 1,018m 2:09.7 View workout
10/20/25 4:14 1,016m 2:05.3 View workout
10/18/25 3:09 519m 3:02.2 View workout
10/18/25 2000m 9:24.8 2:21.2 View workout
10/18/25 2:27 515m 2:22.9 View workout
10/15/25 4:24 1,014m 2:10.6 View workout
10/14/25 9:03 2,017m 2:14.7 View workout
09/18/25 2:39 516m 2:34.3 View workout
09/11/25 3:06 515m 3:00.5 View workout
09/11/25 20:06 3,712m 2:42.5 View workout
09/11/25 2:41 517m 2:35.8 View workout
09/06/25 2:27 518m 2:22.2 View workout
09/03/25 3:02 519m 2:55.4 View workout
09/03/25 20:03 4,059m 2:28.3 View workout
09/03/25 2:32 516m 2:27.2 View workout
09/01/25 3:16 515m 3:10.5 View workout
09/01/25 v0:20/0:10r...24 2,133m 1:52.5 View workout
09/01/25 2:31 520m 2:25.9 View workout
08/30/25 2:16 520m 2:11.5 View workout
08/28/25 5:03 1,027m 2:27.8 View workout