LSD (Long Slow Distance)

　　The topic, LSD, isn't about the hallucinatory drug here. It's a training method for a marathon to make the distance you can run in one time longer, or to get used to the distance itself.
　　I joined my friends to do the LSD training on Jan. 11th. The distance was 25km. They usually run at the pace of more or less 5 minutes per km and they would run the distance at the pace of 7 minutes per km. This pace was actually slow for them, but my best record of 10km is 73 minutes. That works out to 7 minutes and 18 seconds per km. That is to say, 7 minutes per km was not "slow" for me but beyond my ability, but I tried to follow them and was able to finish the distance of 25km along with them.
　　The result is shown in the following picture. I took a rest on the way three times for hydration, urination and lunch break. The watch was halted during these times including waiting time for stoplights. The watch says my average pace was 6 minutes and 47 seconds!

(Vocabulary)
hallucinatory  (薬物などが) 幻覚作用のある
hydrate;
to supply someone or something with water to keep them healthy and in good condition