Mud Bog Rules 2015 Hoosier Mud Championship Series Trojan Raceway in North Webster, IN Gates Open: 10:00 a.m.  Racing Starts: 2:00 pm  Admission: $8.00 per person May 9th June 13th July 11th August 8th September 12th CLASS 1; 33” & UNDER D.O.T. TIRES, 15” VACUUM CLASS 2: 36” & UNDER D.O.T. TIRES, 15” VACUUM CLASS 3: 38.5” & UNDER D.O.T. TIRES, 15” VACUUM CLASS 4: 55” & UNDER D.O.T. TIRES, 11” VACUUM CLASS 5: 55” & UNDER D.O.T. TIRES, NO VACUUM, (SUPER STOCK NO VEHICLES) CLASS 6: QUADS [PADDLES ALLOWED] CLASS 7: STREET STOCK, 15” VACUUM @ 800 RPM CLASS 8: PRO STOCK D.O.T. TIRES [NMRO CLASS 3 RULES] CLASS 9: UNLIMITED CLASS CUT D.O.T. TIRES [NATURALLY ASPERATED] CLASS 11: OPEN CLASS (CUTS, PADDLES, D.O.T. & V TREAD TIRES ALLOWED) CLASSES 1-5 WILL RUN DEEP PIT CLASSES 6-9 WILL RUN THE SHALLOW PIT CHECK BACK FOR RULE UPDATES 2015 MUD BOG RULES NOTE: RULES ARE A PDF FILE. YOU MAY NEED TO UPDATE OR INSTALL ADOBE READER TO VIEW FILES.