Classes & Rules

Small Tire N/T

  $200 entry, PAYOUT $2000 win with 8 cars* N/T will be chip draw for pairings before each round .400 PRO TREE start This is a HEADS UP, CLOCKS OFF CLASS. First to the finish […]

Classes & Rules

JR Open Comp

  OSCA is going SMALL! JR Pro Tree Bracket is HERE! As we are always looking to grow our series, we know there are lots of tough young racers and, what better way to build […]

Classes & Rules

Open Comp

$100 Entry Any year, make, and model vehicles(Door Cars only.) Dragsters and roadsters are prohibited. The Open Comp class will run 2 qualifying passes with your quickest pass (ET) being your index # for the […]

Classes & Rules

Pro Index

$100 Entry Choose from 5.50, 6.0, 6.50, 7.0, or 7.50 index Door cars only (A street roadster is NOT a door car) 400 pro tree, staggered start if racing a car on another index No […]

Classes & Rules

Pro Tree Bracket

$50 Entry, 1st round Buy-back $25 All Run Field, Dragsters, Roadsters, Door Cars, Motorcycles welcome .500 Pro Tree May change dial every round Lane choice will be card draw first round and best WINNING reaction […]

Classes & Rules

ST 5.30 by BTE Trans

  Limited Small Tire is designed to be a heads-up .400 Pro Tree class with a ET cap. of 5.30 sec. 1/8th mile Pairings will be based on a Pro Ladder closest to the cap. […]

Classes & Rules

Limited Street

Limited Street .400 Pro Tree HEADS UP w/ No Break out CLOCKS WILL BE ON Stock type front suspension No full tube chassis cars Back half cars permitted Commercially available Bolt on front clips permitted […]

Classes & Rules

Outlaw presented by Bullseye Power

$300 entry, PAYOUT $2000/$1000 win/ru with 8 cars* Door Cars only, ALL RUN FIELD CLOCKS WILL BE ON Chip draw for pairings before each round .400 PRO TREE start This is a HEADS UP CLASS. […]