It looks like you hit your peak FTP last July when you were in a Specialty phase. Nice work on that!
Between then and your 301 AIFTP Detection in October which was a 5.3% drop, you still averaged over 7.5 hours a week on the bike. It looks like most of it was soul riding without as much structure, but there were definitely some hard efforts mixed in, as well as some racing (nice job at Race the Lake, by the way. I’ve always wanted to do that ride!) which is probably why your FTP stayed pretty consistent fluctuating only a watt or two either way after that initial drop.
It does look like you struggled with some Threshold workouts, in particular after coming back into structured training, which Adaptive Training continued to bump down in intensity for you, but you did crush a lot of VO2 and Sweet Spot workouts, which is great. The endurance workout you mentioned struggling with was before the big 5% drop in your FTP, but regardless, I wonder if there was something bigger going on around this time, as your FTP history shows that 200 watts shouldn’t have ever been much of a chore for you on a normal day.
I’d also like to mention that one of our recent AI FTP Detection updates analyzes each workout to ensure that there aren’t any unique situations inside the 28 day FTP Detection window that would suggest a change in FTP. This helps get athletes locked into the right FTP and ultimately most fitting workout difficulty even more quickly.
It looks like your riding since that block has been unstructured for the most part, and there’s a big chunk without any power data, but as your name suggests, you do ride a lot! I’d be curious to see what sticking closer to the low-volume plan that you’ve recently been on would do for you. I’m seeing a good handful of weeks where you’ve ridden every day, and I wonder what a little more recovery would bring into the equation. It’s clear that you can be really consistent!