Results Adjustments
In order to find an overall winner a competitor's result is adjusted using the formulas below. The adjustments are made in the following order - weight then age.
View Tables (.xls download)Weight Adjustment Factor
This adjustment is performed on all results. The weight adjustment formula (WAF) is:
- Adjusted time = actual time * WAF
- Adjusted distance = actual distance/WAF
Alternative WAF
There is another weight adjustment factor that is used elsewhere on this website, in the formula above substitue 77.27 with 122.73:
"Originally, we used 77.27 to normalize the weight adjusted scores because 77.27kg (170lb) was approximately the average weight of all rowers. But about a year ago we realized that by using a different number to normalize the weight adjusted score we could give the adjusted score more meaning. By using 122.73, the weight adjusted score becomes a pretty good estimate of a person’s potential speed in an eight. To put it another way, if the average adjusted score using this formula of the 8 rowers in an eight is 6:00, then that boat should be capable of a 6:00 2k race on the water—given perfect conditions and near perfect rowing effectiveness (nobody rows perfectly). We believe that this will be approximately true for all types of crews."
This isn't so relevant for the average 'indoor rower' and so not used in RNS for result adjustment, but maybe an interesting comparison for some.
Age Adjustment Factor
The age adjustment factor is only performed on results for those aged 32 and above. We are still working on an age adjustment factor for juniors.
- Adjusted time = result time - (2k handicap*(race distance/2000))
- Adjusted distance = result distance + (result distance *(2k handicap/2000)
For the 2k handicap refer to the age adjustment factor spreadsheet in the 'view tables' download above.