Watts (Rowing)

Watts (Rowing): Watts in rowing measure the power output on an ergometer, calculated from the pace using the Concept2 formula: Watts = 2.80 / pace³.

What is Watts (Rowing)?

Watts represent the mechanical power you produce on a rowing ergometer. They are calculated using the Concept2 formula where watts = 2.80 / pace³ (pace in seconds per metre). Power output has a cubic relationship with split time, meaning small pace improvements require disproportionately more energy. For context, a 2:00.0 split equals approximately 203 watts, while a 1:45.0 split equals approximately 302 watts — a 15-second split improvement requires nearly 50% more power. Watts are considered a more honest metric than split time for comparing effort because they scale linearly with energy expenditure. This makes watts particularly useful for training prescription and tracking fitness improvements.

Formula

Watts = 2.80 / (split_seconds / 500)³ — where split_seconds is your 500m split time in seconds.

How Watta Uses Watts (Rowing)

Watta calculates watts from your extracted split time and uses it as the foundation for the Work Output component of the Effort Score (35% weight). Your watts are size-adjusted using a body weight factor based on the Concept2 weight adjustment formula, ensuring fair comparison across different body types.

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