rare sub par performance

Absolutely gorgeous day here at the lake today. It was a little warm to run but not bad because humidity is low. I was not satisfied with my sub par performance in today's workout. Legs and whole body felt heavy. I did my best, but I feel I fell short. I suppose this happens to other great runners besides me. Started with a 1 mile warm up (10:23) then went immediately to 12 minutes at race pace (9:04 ppm/1.32miles). One minute standing rest (3 feet) was followed by 2 min. jog (11:45 ppm). The next 12 min. race pace was too slow (9:26 ppm/1.27 miles). I sucked air the whole way. Legs would not respond and felt like they were filled with dune sand. Took a one min. standing rest and then a 2 min jog (11:53 ppm). Last repeat was 3 min. at race pace (9:25 ppm/.32 miles). Cool down was .71 miles (11:51 ppm.) Was supposed to do one mile cool down, but I was at the cottage mailbox, and legs were dead. Total distance was 5 miles in 51:55, includes standing rests, (10:23 ppm).

QUERY: Am I the only one posting anymore??