Big Dave Sports – Ohio Spring Road Series and many other events
http://BigDaveSports.com
OVCX Ohio Valley Cyclocross Series – Greater Cincinnati’s Largest Cyclocross Series.
http://www.ovcx.com/
QCW – Cleves TT, Ault Park Crit, etc…
http://www.qcw.org/
Dino Race Series – Indiana Dirt!
http://www.dinoseries.com/index.html
Ohio Bicycle Events Calendar – General Ohio Race Info
http://www.ohiocycling.info/
North East Ohio Cyclocross Series
http://neocx.wordpress.com/schedule/
Sub 9 (sub 9 death march)
http://indytriple.tripod.com/sub9/home.html
DRT Racing
http://drtconsulting.net/drt2/
OMBC Ohio Mountain Bike Championship (series)
http://www.ombc.net/
CORA (Cincinnati Off Road Alliance)
http://www.joinomba.org/cora/