FIM Superbike World Championship Assen, Netherlands April 23, 2010 Free Practice One Results (all on Pirelli tires): 1. Jonathan REA (Honda CBR1000RR), 1:36.789 2. Troy CORSER (BMW S1000 RR), 1:36.914 3. Cal CRUTCHLOW (Yamaha YZF-R1), 1:37.199 4. Leon HASLAM (Suzuki GSX-R1000), 1:37.556 5. Jakub SMRZ (Ducati 1098R), 1:37.660 6. Carlos CHECA (Ducati 1098R), 1:37.737 7. Shane BYRNE (Ducati 1098R), 1:37.781 8. Michel FABRIZIO (Ducati 1098F10), 1:38.040 9. James TOSELAND (Yamaha YZF-R1), 1:38.060 10. Luca SCASSA (Ducati 1098R), 1:38.075 11. Max BIAGGI (Aprilia RSV4 Factory), 1:38.206 12. Lorenzo LANZI (Ducati 1098R), 1:38.213 13. Sylvain GUINTOLI (Suzuki GSX-R1000), 1:38.332 14. Tom SYKES (Kawasaki ZX-10R), 1:38.352 15. Max NEUKIRCHNER (Honda CBR1000RR), 1:38.435 16. Noriyuki HAGA (Ducati 1098F10), 1:38.456 17. Leon CAMIER (Aprilia RSV4 Factory), 1:38.580 18. Ruben XAUS (BMW S1000 RR), 1:38.765 19. Chris VERMEULEN (Kawasaki ZX-10R), 1:40.052 20. Roger HAYDEN (Kawasaki ZX-10R), 1:41.195 21. Matteo BAIOCCO (Kawasaki ZX-10R), 1:41.375