This is a development site only and not the Concept2 Logbook. Unless you are here for testing purposes, please go to the proper Logbook site.

2025 Challenge Calendar

We offer several challenges throughout the year to help keep you motivated. Learn more about them below and download the Challenge Calendar for posting on your wall.

Name Date
January Revolutions January 1–31
Virtual Team Challenge January 1–31
Tour de SkiErg February 1–28
Military Challenge February 1–28
Valentine Challenge February 9–14
Mud Season Madness March 1–31
International Women's Day March 8
World Erg Challenge March 15–April 15
April Fool's April 1–15
Global Marathon May 1–15
Juneteenth June 19
Summer Solstice June 20
Dog Days Of Summer August 1–28
WOD Week September 1–7
Fall Team Challenge September 15–October 15
Skeleton Crew October 25–31
Holiday Challenge November 27–December 24

Other Events

World Rowing Indoor Sprints March 5-9
BikeErg Sprints July 9-13
SkiErg Sprints November 6-9

Recent Challenges

Summer Solstice

June 20

In honor of the longest day of the year, we invite you to participate in the Summer Solstice Challenge by completing 21,000 meters.

Learn More

View the honor board!


Juneteenth Challenge

June 19

Concept2 will be donating $19,000 to charity to mark Juneteenth. For every person signed up from the home page of their logbook, and does at least 1900m on June 19, we will donate an extra $2, up to a maximum total amount of $38,000. Note: BikeErg meters count for half the distance when applied to the challenge.

Learn More

View Juneteenth Challenge Honor Board

Upcoming Challenges

Dog Days of Summer Challenge

August 1–28

The Dog Days of Summer are almost upon us! What better time for a challenge?

Complete the Dog Days of Summer challenge by finishing each of the following four distance goals in the timeframes indicated and log them in your online logbook:

  • Week 1, Aug. 1–7: 10,000 meters
  • Week 2, Aug. 8–14: 20,000 meters
  • Week 3, Aug. 15–21: 30,000 meters
  • Week 4, Aug. 22–28: 40,000 meters

Distances are cumulative (you don't have to complete 10,000 meters in one sitting, for instance), and all meters—rowing or skiing, indoors or out—count. Plus, this year, we've added an optional level for kids and adaptive athletes. We hope you'll join us!

Learn More