TrainingPeaks screenshot, showing a fitness score of 23, a fatigue score of 45, and form score of -17. There's also different trendlines showing progress (5 over last 7 days, 6 over last 28 days, 11 over last 90 days, 3 over last 365 days).
I mentioned I like data when #TriTraining, but sometimes you just one number to gauge where you need to be.
The goal is to get that blue number (fitness, though it's more like "how much training volume can your body take in a week") to 70 by September.
The trendline drops were illness or surgery.