How to Read Your Rowing Machine Monitor

The monitor is the most useful coach you'll ever have - but only if you know what it's telling you. Whether you're on a Concept2 PM5 or another performance monitor, the core numbers are the same. Here's what each one means and which to actually watch.

Split (/500m) - your pace

The big number in the middle is usually your split: how long it would take to row 500m at your current effort, shown as minutes:seconds - Concept2's standard measure of speed in indoor rowing.^[1] Lower is faster. This is the number to live by - it tells you instantly whether you're holding pace, fading, or pushing too hard.

Stroke rate (s/m or spm) - your cadence

Strokes per minute measures how many complete strokes you take each minute - your rhythm, not your effort. As Concept2 notes, a higher rate doesn't automatically mean higher intensity.^[2] Steady work usually sits at 18-24 spm; intervals and sprints climb to 28-36+. You can row the same split at different rates by changing how much power you put into each stroke.

Distance and time

Most workouts are set up as either a fixed distance (row 2,000m) or fixed time (row 20 minutes). The monitor counts down or up accordingly. For intervals, the monitor can be programmed to alternate work and rest automatically.

The force curve

Many monitors can display a force curve - a graph of how your power is applied through the stroke. A smooth, full curve that peaks early means efficient sequencing; a spiky or front-loaded shape reveals timing faults. It's the most honest feedback on your technique you'll get.

Watts and calories

Watts measure raw power output (useful for comparing efforts independent of the machine). The calorie reading estimates energy burned and is handy for "row X calories" CrossFit-style workouts - though it's an estimate, not a precise measurement.

Drag factor (in the menu)

Tucked in the menu is drag factor - a measure of how quickly the flywheel slows between strokes, which reflects the true resistance regardless of the damper number.^[3] Most people train at 110-130. Checking it ensures a "damper 5" today matches your "damper 5" last month.

Which numbers should you watch?

• For pacing: split (/500m) - always.
• For rhythm: stroke rate, especially on steady-state days.
• For technique: the force curve, occasionally.

Ignore the rest until you have a reason to care about it. Master the split and stroke rate first - they'll improve your rowing faster than any other data on the screen.