Amby and George go it alone to review the recent Boston and Lo ndon Marathons. And, wow, is there a lot to review: A sub-2:00 hour world record by Sebastian Sawe at London, a new course record by John Korir at Boston, and a new women-only world record at London for Tigst Assefa.

And plenty of hot action beside these three brilliant performances. We get into all the details--the latest Adidas shoes, consistent negative-split running, carb fueling, bicarb use, and an unusual number of strong American performances, both men and women, at Boston.