Average Split
By the Watta Team · Updated July 2026
What is Average Split?
Average split is the mean pace per 500 metres over an entire rowing workout or test. It is the most important summary metric in rowing because it determines your final time and lets you compare performances across sessions. On a Concept2 PM5, average split is shown on the main screen during the piece and in the workout summary. It is calculated as Average Split = (Total Time ÷ Total Distance) × 500. For example, a 2000m row completed in 7:00 has an average split of (420 / 2000) × 500 = 1:45.0/500m. Because watts scale with the cube of speed, small split improvements require large power increases: dropping from 2:00/500m to 1:59/500m at the same pace is roughly 5 more watts. For a 2K test, holding a 1:45.0 average split means finishing in exactly 7:00.0. Average split is therefore the number to watch during pacing: start slightly above target, settle to target by 500m, then hold or negative split through the finish.
How Watta Uses Average Split
Watta extracts average split from erg screen photos and uses it as the primary metric for the Work Output component of the Effort Score. Tracking average split at the same heart rate over time is one of the clearest indicators of improving fitness.
Further Reading
- Concept2 Training Resources — Official training guides and workout plans from Concept2.
- Concept2 RowErg Specifications — Technical specifications and performance monitor details.
- World Rowing — The international governing body for the sport of rowing.
Frequently Asked Questions
Related Content
Every erg counts.
Download Watta and start tracking your workouts today.
Download on the App Store