Ratio (Drive-to-Recovery)

By the Watta Team · Updated March 2026

Ratio (Drive-to-Recovery): Ratio is the time relationship between the drive and the recovery phases of the rowing stroke, with an ideal ratio of approximately 1:2.

What is Ratio (Drive-to-Recovery)?

Ratio in rowing refers to the proportion of time spent on the drive versus the recovery. The widely accepted ideal is approximately 1:2 — if the drive takes 1 second, the recovery should take about 2 seconds. This ratio creates the characteristic flowing rhythm that defines good rowing. A correct ratio means the recovery is unhurried and controlled, giving the rower time to set up a strong catch and allowing the flywheel to decelerate naturally between strokes. When the ratio is inverted (recovery shorter than or equal to the drive), the rowing becomes rushed and choppy, wasting energy and reducing stroke quality. On the erg, poor ratio is the single most common technical fault among recreational rowers, often caused by rushing the slide forward in an attempt to increase stroke rate.

How Watta Uses Ratio (Drive-to-Recovery)

Watta uses stroke rate alongside power output to assess rowing efficiency. A well-maintained ratio allows rowers to produce more watts at lower stroke rates. The Economy component of the Effort Score (10% weight) captures this by calculating watts per stroke — better ratio leads to higher economy scores.

Further Reading

Frequently Asked Questions

Related Content

The DriveThe drive is the power phase of the rowing stroke where the rower pushes with the legs, swings the back, and pulls with the arms to accelerate the flywheel.The RecoveryThe recovery is the non-power phase of the rowing stroke where the rower returns to the catch position, following an arms-back-legs sequence.Stroke RateStroke rate (also called strokes per minute or SPM) is the number of complete rowing strokes performed in one minute on an ergometer.Effort Score CalculatorErg Technique GuideRowing for BeginnersFor BeginnersFor Rowing Coaches
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