AVSS Schedule:
Auto Value Super Sprints

ISMA Schedule: *
International SuperModified Association

Michigan Legends Schedule: *
Michigan Legends

Midwest Classic Racers Schedule (Dwarfs):
Midwest Classic Racers

National Sprint Car Series Schedule:
USAC National Sprint Car Series

National Midget Car Series Schedule:
USAC National Midget Car Series

Silver Crown Series Schedule:
USAC Silver Crown Series

Sprints on Dirt Schedule:
ASCS Sprints on Dirt

USA Modifieds Schedule: *
USA Modifieds

Wolverine Outlaw Midget Series Schedule:
WOMS

Southern Ontario Sprints Schedule: *
SOS

* updated for 2008