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Latest Challenges

World Erg Challenge March 15–April 15
April Fool's April 1–15
Mindful May Meters May 1–31
Marathon and Century Challenge May 1–15

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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

Donald Muddiman

Log

Date Workout Score Ave Comments Action
01/09/26 30:00 5,542m 2:42.3 View workout
01/04/26 30:00 5,655m 2:39.1 View workout
12/28/25 30:00 5,412m 2:46.2 View workout
12/23/25 30:00 5,692m 2:38.1 View workout
12/19/25 30:00 5,696m 2:38.0 View workout
12/09/25 30:00 5,594m 2:40.8 View workout
12/07/25 30:00 5,675m 2:38.5 View workout
12/05/25 30:00 5,651m 2:39.2 View workout
12/02/25 30:00 5,592m 2:40.9 View workout
11/30/25 30:00 5,604m 2:40.5 View workout
11/28/25 30:00 5,158m 2:54.4

70% effort

 View workout
11/25/25 30:00 5,510m 2:43.3 View workout
11/14/25 30:00 5,574m 2:41.4 View workout
11/12/25 30:00 5,697m 2:37.9 View workout
11/06/25 30:00 5,652m 2:39.2 View workout
11/02/25 30:00 5,761m 2:36.2 View workout
10/29/25 30:00 5,888m 2:32.8 View workout
10/24/25 30:00 5,797m 2:35.2 View workout
10/20/25 30:00 5,741m 2:36.7 View workout
10/15/25 30:00 5,855m 2:33.7 View workout
10/12/25 30:00 5,776m 2:35.8 View workout
10/10/25 30:00 5,828m 2:34.4 View workout
10/07/25 30:00 5,782m 2:35.6 View workout
10/05/25 30:00 5,879m 2:33.0 View workout
10/02/25 30:00 5,808m 2:34.9 View workout