Sign Up
4,967,880
Lifetime Meters
2,982,661
Season Meters

Last 30 Days Activity

Latest Challenges

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

View Challenges

Concept2 Blog

Dec 10 Begin Your Fitness Journey Now
Dec 4 Concept2 Model A Return to Glory - 40 Years Later
Nov 10 Concept2 Partners with NSCA Foundation for Equipment Grants
Nov 5 Tips to Increase Your Endurance with Concept2

Piotr Grzegdala

Log

Date Workout Score Ave Comments Action
12/14/25 100c 5:54.4 1:59.1 View workout
12/14/25 v1:00/1:00r...7 10,022m 1:35.7 View workout
12/14/25 100c 4:44.0 1:47.9 View workout
12/14/25 v1:00/1:00r...7 4,822m 1:39.5 View workout
12/14/25 v1:00/1:00r...4 1,192m 1:40.6 View workout
12/13/25 3:24 1,623m 2:06.2 View workout
12/13/25 5000m 8:29.6 1:41.9 View workout
12/13/25 v1:00/1:00r...10 3,276m 1:31.5 View workout
12/13/25 v1:00/1:00r...4 1,194m 1:40.5 View workout
12/13/25 6:00 3,058m 1:57.9 View workout
12/13/25 v1:00/1:00r...10 6,777m 1:28.5 View workout
12/13/25 4000m 6:55.8 1:43.9 View workout
12/12/25 100c 5:28.0 1:55.0 View workout
12/12/25 v3000m/2:00r...4 12,000m 1:33.6 View workout
12/12/25 100c 4:29.3 1:45.9 View workout
12/12/25 v1500m/2:00r...4 6,000m 1:41.5 View workout
12/11/25 v4:00/2:00r...7 11,725m 1:37.2 View workout
12/11/25 v4:00/2:00r...7 5,820m 1:37.9 View workout
12/10/25 21097m 34:58.7 1:39.4

21,097 Meters - Half Marathon - Bike - C2 Rankings & Challenges
app.erg.z…

 View workout
12/09/25 4:38 2,602m 1:46.9 View workout
12/09/25 v0:20/0:10r...24 5,359m 1:29.5 View workout
12/09/25 v0:20/0:10r...24 2,651m 1:30.5 View workout
12/08/25 v6:00/1:00r...6 13,216m 1:35.3 View workout
12/07/25 v0:45/0:45r...20 9,696m 1:32.8 View workout
12/07/25 5:21 2,832m 1:53.6 View workout