First test versus latest test, at least four weeks apart, for every athlete with two or more sessions. "Beyond noise" means the change is larger than the measurement's minimal detectable change — the same rule your coach uses on your report. A metric appears once at least 5 athletes have been retested.
Updated 2026-09-06. Improvement is direction-aware (a faster sprint counts as positive). Individual results vary with training age, attendance and sport.