Full free practice times (2) from the fourth round of the 2009 World Supersport Championship at Assen, Netherlands.

1. Cal Crutchlow GBR Yamaha SSP YZF R6 1min 41.160s
2. Joan Lascorz ESP Kawasaki Provec Motocard.com ZX-6R 1min 41.289s
3. Kenan Sofuoglu TUR HANNspree Ten Kate Honda CBR600RR 1min 41.503s
4. Katsuaki Fujiwara JPN Kawasaki Provec Motocard.com ZX-6R 1min 41.611s
5. Michele Pirro ITA Yamaha Lorenzini by Leoni YZF R6 1min 41.703s
6. Fabien Foret FRA Yamaha SSP YZF R6 1min 41.754s
7. Andrew Pitt AUS HANNspree Ten Kate Honda CBR600RR 1min 41.922s
8. Anthony West AUS Stiggy Motorsport Honda CBR600RR 1min 41.930s
9. Matthieu Lagrive FRA HANNspree Althea Honda CBR600RR 1min 42.091s
10. Eugene Laverty IRL Parkalgar Honda CBR600RR 1min 42.109s
11. Garry McCoy AUS Triumph BE1 Racing 675 1min 42.389s
12. Barry Veneman NED Hoegee Suzuki GSX-R 600 1min 42.467s
13. Gianluca Vizziello ITA Stiggy Motorsport Honda CBR600RR 1min 42.614s
14. Gianluca Nannelli ITA Triumph BE1 Racing 675 1min 42.682s
15. Alessandro Polita ITA Hoegee Suzuki GSX-R 600 1min 42.684s
16. Massimo Roccoli ITA Intermoto Czech Honda CBR600RR 1min 42.713s
17. Mark Aitchison AUS HANNspree Althea Honda CBR600RR 1min 42.731s
18. Robbin Harms DEN Veidec Racing RES Honda CBR600RR 1min 42.803s
19. Daniel Dell'Omo ITA Kuja Racing 1mins 43.076s
20. Miguel Praia POR Parkalgar Honda CBR600RR 1min 43.142s
21. Patrick Vostarek CZE Intermoto Czech Honda CBR600RR 1min 43.156s
22. Jesco Gunther GER RES Software Veidec Racing 1min 43.255s
23. Fabrizio Lai ITA ECHO CRS Grand Prix Honda CBR600RR 1min 43.618s
24. Arie Vos NED Veidec Racing RES Honda CBR600RR 1min 43.891s
25. Russell Holland AUS ECHO CRS Grand Prix Honda CBR600RR 1min 43.988s
26. Matej Smrz CZE Factory Racing Triumph 675 1min 44.177s
27. Doni Tata Pradita INA YZF Yamaha R6 1min 44.363s
28. Kevin Bos NED VD Sleen/Heyden Yamaha YZF R6 1min 44.759s
29. Twan Van Poppel NED Holiday Gym Yamaha YZF R6 1min 45.492s
30. Marcel Van Nieuwenhuizen NED Sterken Racing Honda CBR600RR 1min 46.236s
31. Yannick Guerra ESP Holiday Gym Racing Yamaha YZF R6 1min 48.618s