Simple Javascript calculator to compare times and or distances rowed on a Concept 2 ergometer with other club members, taking age, weight and sex into account for a more fair ranking.
This calculator was made to easily calculate the score for participants to the internal Ergometer Challenge of my rowing club, KAR&ZV De Hoop, but feel free to use it for your own Ergometer Challenges too!
The first edition the Challenge consisted of rowing 5k on a Concept 2 ergometer and getting the best possible split. We used the following format to determine the final score compensated for gender, weight and age.
- Row fasted possible 5k and take your average split
- Transform the average split to an output of watts / kg
- Compensate for decreased performance per year over the age of 30 by 0,8%
- Use a 15% multiplier for female participants
In the section edition of the competition we changed some rules as both older and female members felt the compensation score was not totally fair. This time we used a modified format to make the end result more fair.
- Row as many meters as possible in 20 minutes
- Compensate that distance for your weight
- Compensate for decreased performance per year over the age of 30 by 0,65%
- Use a 20% multiplier for female participants