My coach wanted me to do a short ride to establisha basebline heart rate and average speed.   Since we're having the TAKS test tomorrow there was no baseball practice today and I jumped on my bike, though I had felt slightly ill all day.  The trinity wasn't the best for this test, but it'll do.  I warmed up for 15 minutes and then hit the garmin to record.
 
My only instruction was to warm up and go 20 minutes at the max HR I could sustain.  I wasn't sure exactly how to do this.  Do I go balls out and let me HR drop as I gasp for breath, or just go for what I think I can do for 20 minutes straight?  I didn't have a chance to talk to coach pruitt beforehand.  
 
I ended up just trying to see if I could keep it at 150.  Turned out to be a non-issue because I was flying at a pretty dangerous speed for that HR on the trail.  I went out with the wind and was zipping along at times at 25mph.  Turrns, walkers, dogs, and bumps and bridges kept me about a 20.5 average when I turned around 10 minutes later.  Against the wind my speed slowed down and the HR went up a bit.  
 
Ended up like this:
total for the ride was almost 16 miles exactly.
for my 20 minutes timing period, I had a AVG heart rate of 147 bpm and 20.0 average speed.
 
No idea what this means.  I feel sure I could have maintained 155-160 the entire 20 minutes no problem.  Soon as I slowed up my HR dropped right down to 125-135.  Still had plenty gas left in the tank.
 
Still, it's fun to have a goal and have a coach.  At least now I don't feel like I'll be bumbling my way through everything this year!

dammit, I knew I'd screwed it up.    Looks like i have to do it all over again.  Hopefully I can fit it in somewhere this weekend or early next week.