MISANO (AFP) - World championship leader Casey Stoner will start from pole in Sunday's San Marino MotoGp after recording the fastest time in qualifying on Saturday breaking his own track record, set here in 2008. The Honda-riding Australian -- who comes into the race on the back of his win in the United States last Sunday -- timed 1min 33.138sec to erase his former record time by 0.24sec and take pole for the eighth time this season. Yamaha's defending world champion Jorge Lorenzo of Spain was 0.12sec slower while another Spaniard, and Stoner's Honda team-mate, Dani Pedrosa was 0.18sec adrift. Stoner, world champion in 2007, leads Lorenzo by 44 points but is not envisaging having things all his own way on Sunday. "Sunday will be a very hard race," said Stoner. Lorenzo, however, was almost resigned to having to concede more ground in the title race. "We will have to be at more than 100 percent today (Sunday) to beat the Hondas," he said. MotoGp timings 1. Casey Stoner (AUS) Honda 1min 33.138sec, 2. Jorge Lorenzo (ESP) Yamaha at 0.120sec, 3. Dani Pedrosa (ESP) Honda 0.180, 4. Ben Spies (USA) Yamaha 0.809, 5. Marco Simoncelli (ITA) Honda 0.852, 6. Andrea Dovizioso (ITA) Honda 0.888, 7. Colin Edwards (USA) Yamaha 0.916, 8. Alvaro Bautista (ESP) Suzuki 1.222, 9. Hector Barbera (ESP) Ducati 1.454, 10. Hiroshi Aoyama (JPN) Honda 1.499 11. Valentino Rossi (ITA) Ducati 1.538, 12. Karel Abraham (CZE) Ducati 1.589, 13. Cal Crutchlow (GBR) Yamaha 1.653, 14. Randy de Puniet (FRA) Ducati 1.732m, 15. Nicky Hayden (USA) Ducati 1.817, 16. Loris Capirossi (ITA) Ducati 2.364, 17. Toni Elias (ESP) Honda 3.029 Moto2: 1. Stefan Bradl (GER) Kalex 1min 37.828sec, 2. Marc Marquez (ESP) Suter at 0.256sec, 3. Yuki Takahashi (JPN) Moriwaki 0.512sec, 4. Scott Redding (GBR) Suter 0.536, 5. Alex De Angelis (SMR) Motobi 0.633 125cc: 1. Johann Zarco (FRA) Derbi 1min 43.247sec, 2. Hector Faubel (ESP) Aprilia at 0.193sec, 3. Nicolas Terol (ESP) Aprilia 0.357, 4. Sandro Cortese (GER) Aprilia 0.358, 5. Danny Kent (GBR) Aprilia 0.993.