Well, I'm not a racer and never will be, so miles are my marker.
I've got about 500 on the year so far, which is good (for me) especially considering I didn't ride at all in January or February. I've got my first century next month, which I'm training for, and last weekend broke my personal distance record on a 72 mile solo ride that was... surprisingly not as difficult as I'd expected, despite serious headwinds and a lot of hills. Most importantly, I've lost my winter weight gains and I'm having fun.