2K Erg Time Predictor

How 2K prediction works

Rowing performance across distances follows a predictable power curve. As distance increases, your sustainable pace drops because a larger fraction of energy must come from aerobic metabolism. This relationship is captured by Paul's Law:

T_2K = T_test × (2000 / D_test)^1.06

The 1.06 exponent is widely used in the rowing community and fits real-world Concept2 data well. It assumes a well-paced test piece at maximum effort. A poorly paced piece or one rowed at submaximal effort will reduce prediction accuracy.

Want to know what training zones to target for your predicted 2K? Use our training zone calculator.