Speed Work

OK , cant forget about a little speed. 12K done at lunch today , 10K at my 4:40 pace , 1K at a 4:00 pace then 1K at a 4:30 pace. Had to make a sudden stop and called it a day at 12K! I was really lost in my head on the treadmill today, it was fun to actually run today... definitely a better after glow then the slower runs.