By the end of September Jake would still have to go to Berlin to participate in this marathon, this was a marathon that Jake wanted to participate even if he didn't have to run all 6 major marathons.
Besides being in a country that has a great history, it was considered the fastest marathon in the world ever, if it wasn't because the Chicago marathon was Jake's favorite he wouldn't mind breaking his own world record in that marathon.
Maybe if he had an interest in doing that and if he was feeling well that day he could break his own world record in Berlin, but it was something he would have to see at the end of the month.
What Jake knew was that he would have to break his world record this year again to shorten his time, because even though he remembers that his record should stay for a few years next year in Berlin a Brazilian athlete named Ronaldo da Costa will only run 3 seconds above this record.