The official 2017 Tire Rack SCCA ProSolo rules have been released on SCCA.com.

Changes were minimal, mostly focused on updates to the ProSolo index factors. The Christmas tree-style start, a trademark of ProSolo competition, requires index adjustments that vary from the PAX index used in other Tire Rack SCCA Solo events.

“Our goal was to have stability in the rules and only make changes to better describe processes so they are better understood by the participant,” said Howard Duncan, SCCA Senior Director of Solo and Rally. “The ProSolo Index factors have been revised after another year of data collection for fine tuning the Index.”

Any questions or clarifications should be directed to Doug Gill at dgill@scca.com or 800/770-2055.