The Thursday night ride has grown significantly over the last three years. What was a small group of 20-30 triathletes and a handful of road cyclists is now 65 to 85 athletes in about a 50:50 mix.
Last night was fun! A few of the pro cyclists were out for a few of the "easy" laps. Once they peeled off it was "game on" for the rest of us. I like to sit about 2/3 of the way back and blast past the group as a whole. Sometimes I get caught, other times I'm able to stay away. Not unlike any break in the TdF.
The pace was picking up. Just before critical mass, I went. A full on attack of the group with a 100% effort for about a full 90 seconds. I didn't look back until I was nearly at the end (about 30 seconds later) and I still had a 200 yard gap. Success!
Once "complete" I finished the workout doing my own thing riding at 74% effort. This allows me to stay out of the bunch sprints when guys are failing.