How to read a rowing force curve

A force curve shows how hard you load the handle from the catch to the release. Its shape tells you when the drive produces force, whether that pressure is held, and whether the stroke runs through in one piece.

The catch

The catch is where the drive begins. Look for force to rise firmly as the legs connect to the handle. A sharp spike followed by a collapse can show that the load was not carried into the drive.

The peak

The peak is the strongest point of the stroke. Its height changes with effort, so look at where it falls and how smoothly the curve moves through it. A peak that moves later can show that the legs connected late.

The release

After the peak, force should taper towards the release. A sudden drop can show that pressure disappeared before the stroke finished.

What a double bump means

Two peaks with a dip between them show that force fell and returned during the drive. Watching whether that shape repeats can help you work on a smoother connection.

Why the scale stays fixed

Row Smarter draws calibrated curves on a scale fixed per athlete. You can configure it in Settings, and the default maximum is 800 newtons. That keeps changes in force visible from one stroke to the next.

When a source does not provide calibrated force, Row Smarter labels the curve as uncalibrated.

Compare like with like

Compare curves from the same machine at similar stroke rates and effort. Row Smarter keeps measurement context with each stroke and avoids comparisons when the data is incompatible.

See which machines provide force curves, or compare Row Smarter with other rowing apps.