IMSA: Yacaman sends OAK Racing to the top of the times at Road Atlanta

The OAK Racing team overcame its earlier setbacks with the Ligier JS P2-Honda to go fastest in the 90-minute Thursday evening session at Road Atlanta, the third practice for the 2014 Petit Le Mans, the TUDOR Championship's finale.

Gustavo Yacaman laid down a 1min14.923sec to edge the Spirit of Daytona Corvette DP by a mere 0.068sec, Westbrook's fastest run being an almost identical margin ahead of Sebastien Bourdais' best in the Action Express Racing Corvette No. 5.

Scott Dixon pulled an excellent lap out of the bag to send the Chip Ganassi Racing with Felix Sabates Riley-Ford Ecoboost into fourth, little more than 0.2sec off the ultimate pace. Brian Frisselle was an impressive fifth in the second AX Racing Corvettte.

For the second time today, Petit Le Mans' defending GTLM-class winners, Team Falken Tire, headed the charts in the faster GT category, 0.155sec ahead of the No. 3 Corvette C7.R, piloted to its quickest time by championship aspirant Antonio Garcia. The Spaniard was just 0.001sec faster than Michael Christensen in the No. 912 Porsche 911 RSR, and 0.047sec faster than title rival, Dodge SRT Viper driver Jonathan Bomarito. Nick Tandy was fifth in the second Porsche North America entry.

Jack Hawksworth sprung RSR Racing to the top of the Prototype Challenge class with a 1min17.250sec lap which eclipsed 8Star Motorsport's Tom Kimber-Smith by a quarter-second. Gunnar Jeannette was third for PR1/Mathiasen Motorsport, a blink ahead of Colin Braun in the CORE Autosport No. 54 entry.

Porsche's domination of the GT Daytona category continued, but this time it was Mario Farnbacher who was top 911 GT America driver, heading his Alex Job Racing teammate Leh Keen by 0.092sec., with Snow Racing's Jan Heylen a mere 0.068sec further back. Top non-Porsche in GTD was the 6th-placed TRG Aston Martin V12 Vantage of James Davison

Fourth practice starts at 10.10 a.m. ET tomorrow, with qualifying running class by class starting at 4.20 p.m. ET for GT Daytona.