3×300 Aerobic

Steady, controlled, repeatable — build aerobic power.

Live Testing

Enter the session info, then use Start/Stop to capture 3 repeat times directly into the form. Results update as each rep is entered.

00:00.00
Waiting…

Enter 3×300 Aerobic

Labels (yd/m) + /100 pacing context.
Ex: 03:25.0

Results

Enter reps to calculate average, deltas (vs current average), and pace /100.

Summary

Course
Distance
Average (current)
Avg Pace /100

Per-Rep Breakdown

Rep Time Δ vs Avg Pace /100
1
2
3
Positive delta = slower than average; negative = faster.

Build a Test Sheet

Use a blank sheet or pull in your calculated values. All buttons will print to PDF.