Races 20a and 20b were held on Sunday October 25.
Race 20a Fabian Coulthard and Cameron McConville wrecked against the wall before the first corner. Coulthard's car was heavily damaged and would take no further part in the weekend. Steven Richards spun Greg Murphy around further back. Richards was subsequently issued a black flag for a driving infringement. Up front Lowndes out-launched the front row pair of Jason Bargwanna and Rick Kelly to jump into the race lead before the Safety car appeared to clean up the mess left by the opening lap. Rick Kelly caught and passed Bargwanna at the restart. Bargwanna quickly lost further positions as the car misfired on seven cylinder. A quick pitstop to fix a plug lead got Bargwanna back up to pace, but well back in the pack, a cruel result after his first pole position in ten years. Will Davison dropped to the tail of the field with damage to the front right corner of the car after clipping a dislodged tyre bundle at one of the many chicanes. The car pitted and the HRT crew began to replace the damaged right side steering arm. Michael Patrizi stopped at the top of the course, safety car sent out to control the field once more. The Safety car was sent out the lap after pitstops began, vaulting the few cars who pitted early to the top of track position. At the subsequent restart Shane van Gisbergen overtook Jamie Whincup prior to passing the start/finish line, incurring an instruction from race control to let Whincup past again. Whincup had slowed approaching to line as he prevented himself from overtaking a pitbound Will Davison. Lowndes settled into a lead over Rick Kelly, although Kelly was later given a black flag as his Commodore was venting fuel from the back of the car. Kelly eventually pitted on lap 20. The following lap
Michael Caruso had a major engine failure, dumping fluid over Seek Turn Three. Lee Holdsworth and Greg Murphy spun at the Beach Esses on lap 27. Lowndes raced on to take a two-second lead over Winterbottom, Garth Tander, Russell Ingall and the Dick Johnson Racing pair of James Courtney leading Steven Johnson. The sting was the second to last lap retirement of Jamie Whincup, bouncing off the walls exiting Falken Tyres Turn at the top of the circuit. ==Results==