Had a brutal head cold all week - managed to eke out 30 minutes on the treadmill on Wednesday and it set me back for 2 more days.
Today, I was feeling "normal" - so three of us kept our date for a speed workout at the local HS track, leaving from my house. We ran there to warm up, did 3 intervals (2 laps run, 1 lap walk) and then ran home.
I've done this twice before and they came out as 5.16 and 5.17 miles. Today, I did the same route, and it was 4.9 miles.
Go figure. Actually...I think I know what the issue was...we didn't walk one lap of the track when we got there before we started our intervals.
But, I did them today. They weren't pretty and I had to walk some of the second lap on intervals 1 and 3. I was bringing up the rear on the run home. And I was slower than the 2 other times I did this. 
Still...I lived to tell the tale so I'm pretty happy that I think I can survive next Sunday's 8k road race.
2007 Seven ID8 - Bontrager InForm
2003 Klein Palomino - Terry Firefly (?)
2010 Seven Cafe Racer - Bontrager InForm
2008 Cervelo P2C - Adamo Prologue Saddle