Yea right! These guys run the hundred 6 weeks in a row then he's suddenly sore. Be honest, Tim. You want to end the season on the highest note possible, a world record. I would want to do the same thing. Why continue to run this season? Really, unless you 110% confident you would break the world record again, fans and yourself will at best see it as a let down and at worst call your world record a fluke.
Pack it in, get ready for next season so that when you don't break the record you can say your just getting back into it.