ErgData Raw score vs weight adjusted

[smokersteve]

Been rowing for about 3 months now so I’m still real new to this sport.
I’m 5’8” and 145 lbs.
The last 5000m row I did was the first time I did it under 20 minutes.
Noticed Raw Score/Weight Adjusted on the ErgData app

Raw score averages:
19:58.8 5000m 1:59.8/500m 23s/m

Weight adjusted averages:
17:24.2 5000m 1:44.4/500m 23s/m

I don’t get it. Why is there a difference?

[hjs]

They use a “perfect” weight, if you are below or above the adjusted score is higher. For a rower you are below a desired height and weight, you could never make it in a big boat. Toprowers are roughly 190/200 and 90/100kg.
In the end its ofcourse about your personal score, the adjusted one is maybe “fun” but it won,t make you faster.

[Cyclist2]

Weight adjusted scores help coaches determine how well a person might move a boat through the water - bigger, heavier people have more power but also weigh the boat down, causing more drag. This effect is not accounted for on the erg, so the adjustment used on the erg gives a little better idea of how the various weighted people might do in a boat. Here is the C2 link that explains it better:

https://www.concept2.com/indoor-rowers/ ... calculator

[hjs]

Weight adjusted scores help coaches determine how well a person might move a boat through the water - bigger, heavier people have more power but also weigh the boat down, causing more drag. This effect is not accounted for on the erg, so the adjustment used on the erg gives a little better idea of how the various weighted people might do in a boat. Here is the C2 link that explains it better:

https://www.concept2.com/indoor-rowers/ ... calculator

Only half true, when you are very heavy, the adjusted score also will be better. Yet you would sink a boat

[Cyclist2]

Only half true, when you are very heavy, the adjusted score also will be better. Yet you would sink a boat

Nope. Here is C2's formula from that web site: Wf = [body weight in lbs / 270] raised to the power .222. So if you weigh less than 270, you have a faster adjusted time/more adjusted meters, more than 270 you have a slower adjusted time/fewer adjusted meters.

Perhaps, as the site suggests, you are using a different formula.

[hjs]

Only half true, when you are very heavy, the adjusted score also will be better. Yet you would sink a boat

Nope. Here is C2's formula from that web site: Wf = [body weight in lbs / 270] raised to the power .222. So if you weigh less than 270, you have a faster adjusted time/more adjusted meters, more than 270 you have a slower adjusted time/fewer adjusted meters.

Perhaps, as the site suggests, you are using a different formula.

Haha thats ridiculous. But thanks, did not know this.

270 is ofcourse a weight no serious ever will be so everybody gets his result adjusted up. Really makes no sence, not one olympic rower will find a spot weighing that heavy.

[NavigationHazard]

Keep in mind that the weight-adjusted score is comparing you not to one individual erger or rower, but rather to an average score from a hypothetical viii (8-rower racing shell) rowed by eight oarsmen/women with the same weight as you. As noted in replies above, this adjustment accounts for weight-dependent changes in boat drag (i.e. friction with the water that's a function of the wetted surface area of the hull).

C2 assigns parity in its formula to rowers weighing a hypothetical 270 lbs. But that figure represents both rower weight >and< 1/8 of: coxwain weight; hull weight; riggers + footstretchers; anything like electronics or water bottles that's inside the boat; and most likely oars (when they're out of the water they're adding their full weight to that of the rest of the ensemble). A typical top-end viii weighs 200-220 lbs or so. FISA - the World Rowing Federation - specifies a minimum coxwain weight of 121.5 lbs. 8 sweep oars collectively are going to weigh somewhere around 50 lbs. That's ~ 400 lbs of weight in addition to the rowers, or another 50 lbs per rower. Subtract that from 270 and you get hypothetical rowers for C2's formula of 220 lbs or so. That's going to be in the ballpark for national-squad or top collegiate male HW sweep rowers. By way of example, Mo Sbihi from the current British viii, is on the thick side and listed at 103 kg/227 lbs. Connor Harrity, from last year's US viii, is on the thinner side and listed at 208 lbs.

[Gabe_G]

Keep in mind that the weight-adjusted score is comparing you not to one individual erger or rower, but rather to an average score from a hypothetical...

Very informative. Thank you.