Rowing Weight Categories

By the Watta Team · Updated

Rowing Weight Categories: Rowing has two weight categories, lightweight and open (heavyweight). On the water, lightweight crews average at most 70kg (men) or 57kg (women); Concept2 erg rankings use 75kg and 61.5kg.

What is Rowing Weight Categories?

Competitive rowing divides athletes into lightweight and open (heavyweight) categories, and the limits depend on where you are competing. On the water, under World Rowing rules, a lightweight men's crew must average no more than 70kg with no rower over 72.5kg, and a lightweight women's crew no more than 57kg with no rower over 59kg; lightweight single scullers must weigh no more than 72.5kg (men) or 59kg (women). Concept2's indoor rankings use simpler, higher limits: 75kg for men and 61.5kg for women. Open weight has no limit in either. Lightweight rowing exists because body mass adds absolute power — heavier rowers move both the boat and the flywheel faster — and the category lets smaller athletes race on equal terms. On the erg, Concept2 also publishes a weight adjustment for comparing rowers of different sizes: weight factor = (body weight in lb ÷ 270)^0.222, and adjusted time = actual time × weight factor. Lightweight events were raced at every Olympics from Atlanta 1996 to Paris 2024 and are not on the programme for Los Angeles 2028.

How Watta Uses Rowing Weight Categories

Watta uses your body weight in the Work Output part of the Effort Score: your watts are compared with a baseline scaled for your weight using the same 0.222 exponent Concept2 uses, so a lighter rower is not marked down for producing fewer absolute watts.

Further Reading

Frequently Asked Questions

What are the lightweight limits?
On the water (World Rowing): men's crews average no more than 70kg with no rower over 72.5kg; women's crews average no more than 57kg with no rower over 59kg; single scullers must be at or under 72.5kg (men) or 59kg (women). Rowers are weighed before racing. Concept2 indoor rankings use 75kg for men and 61.5kg for women.
How does the Concept2 weight adjustment work?
Concept2 multiplies your time by a weight factor: (body weight in lb ÷ 270)^0.222. Because the reference is 270 lb, almost everyone gets a faster adjusted time, and lighter rowers gain the most. The weight adjustment calculator does the sum for you.
Is lightweight rowing in the Olympics?
Lightweight events were raced at every Olympics from Atlanta 1996 to Paris 2024, latterly only the men's and women's double sculls. They are not on the programme for Los Angeles 2028, but lightweight racing continues at World Championships and national level.

Related Content

Power-to-Weight RatioPower-to-weight ratio in rowing is the relationship between erg power output (watts) and body weight (kg), used to compare performance across different weight categories.Watts per Kilogram (W/kg)Watts per kilogram (W/kg) is power output divided by body weight. It lets rowers of different sizes compare performance fairly.2K TestA 2K test is a 2,000-metre maximal effort rowing ergometer test — the standard benchmark for indoor rowing performance, used for team selection and fitness assessment.Concept2 RankingThe Concept2 Online Ranking is a global leaderboard where rowers submit verified ergometer results across standard distances, seasons, and age/weight categories.Weight Adjustment CalculatorPower-to-Weight CalculatorHow to Improve Your 2K TimeFor Lightweight RowersFor Competitive Rowers
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