Wasn't last years sprint races 8 laps, the tentative schedule says the sprint races are 6 laps this year ?
I thought they were 7 laps but I believe the go carts racing made them adjust the schedule.
it looks like the AMs were lapping at around 7:30 last year. must have been pretty brutal conditions. myracingbio says 8 laps but the results say 7. i'd trust the results.