Stanford set the all-time best DMR on a 200m track a few years ago with Jennings/Kelty/Stember/Riley. Jonathon's lead was so big by the time he got the baton that he only ran about 4:00. I'm sure he could have gone faster in a more competitive race, but he didn't.
Anyway, with Robison running 1:47 last summer, is the new version of the Stanford DMR --Sage/Sebes/Robison/Hall better than version 2000?