I asked a question based upon my Intervals age/power data and TR guys answered it, but incorrectly assumed I was referring to Coggan data, when I was referring to the Intervals age-W/Kg charts. Here’s the video: Metabolic Efficiency, Marking Riders, Sustained Power and More – Ask a Cycling Coach 314 Since I’m an old guy and have been training for only 3 years, my Coggan data is not strong. But what’s interesting is my short power using Intervals age/power/WKg is in top 1/3 of my peers, but 20+ minutes is bottom third. But for Coggan, my 20+ W/Kg trend is other way, with longer times better my short power. I’m guessing that’s the nature of Coggan data, which is geared toward short races?