It is a shame about the Marathon, that used to broaden the appeal of the event considerably. Bit far for me just to spectate, but have enjoyed the two occasions I have attended, once to race in Masters GD and the second time just supporting- helping Iain from memory!
Only 12 HF1, but several regulars are at Laguna Seca in Masters American series. Clever when you have clashes with your own events.....
Timetable-
http://www.mastershistoricracing.com...incl.TEST.pdf/