| Round: | Assen |
| Flag: | Netherlands |
| Location: | Assen |
| Course Km: | 4.542 |
| Sbk Round No: | 3 |
| Sbk Season No: | 13 |
| Ss Round No: | 3 |
| Ss Season No: | 12 |
| Prev: | Europe |
| Next: | Italy |
| Date: | April 17 |
| Year: | 2011 |
| Pole Rider Sbk: | Carlos Checa |
| Pole Rider Sbk Country: | Spain |
| Pole Time Sbk: | 1:35.292 |
| Fast1 Rider Sbk: | Tom Sykes |
| Fast1 Rider Sbk Country: | UK |
| Fast1 Time Sbk: | 1:36.660 |
| Fast2 Rider Sbk: | Leon Camier |
| Fast2 Rider Sbk Country: | UK |
| Fast2 Time Sbk: | 1:36.476 |
| Pole Rider Ss: | Luca Scassa |
| Pole Rider Ss Country: | Italy |
| Pole Time Ss: | 1:38.008 |
| Fast Rider Ss: | Luca Scassa |
| Fast Rider Ss Country: | Italy |
| Fast Time Ss: | 1:39.019 |
The 2011 Assen Superbike World Championship round was the third round of the 2011 Superbike World Championship. It took place on the weekend of April 15 - 17, 2011 at the TT Circuit Assen located in Assen, Netherlands.
| Pos. | No. | Rider | Bike | Laps | Time/Retired | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 4 |  Jonathan Rea | Honda CBR1000RR | 22 | 35:46.486 | 5 | 25 |
| 2 | 1 |  Max Biaggi | Aprilia RSV4 Factory | 22 | +0.739 | 6 | 20 |
| 3 | 7 |  Carlos Checa | Ducati 1098R | 22 | +3.572 | 1 | 16 |
| 4 | 33 | Marco Melandri | Yamaha YZF-R1 | 22 | +9.508 | 8 | 13 |
| 5 | 84 | Michel Fabrizio | Suzuki GSX-R1000 | 22 | +9.892 | 13 | 11 |
| 6 | 11 |  Troy Corser | BMW S1000RR | 22 | +11.120 | 10 | 10 |
| 7 | 58 |  Eugene Laverty | Yamaha YZF-R1 | 22 | +15.235 | 3 | 9 |
| 8 | 111 | Rubén Xaus | Honda CBR1000RR | 22 | +30.081 | 14 | 8 |
| 9 | 86 | Ayrton Badovini | BMW S1000RR | 22 | +32.071 | 16 | 7 |
| 10 | 8 | Mark Aitchison | Kawasaki ZX-10R | 22 | +35.000 | 21 | 6 |
| 11 | 17 | Joan Lascorz | Kawasaki ZX-10R | 22 | +43.287 | 11 | 5 |
| 12 | 91 | Leon Haslam | BMW S1000RR | 22 | +45.289 | 12 | 4 |
| 13 | 37 | Barry Veneman | BMW S1000RR | 22 | +45.298 | 19 | 3 |
| 14 | 66 | Tom Sykes | Kawasaki ZX-10R | 22 | +50.764 | 7 | 2 |
| Ret | 96 |  Jakub Smrž | Ducati 1098R | 18 | Accident | 2 | |
| Ret | 50 |  Sylvain Guintoli | Ducati 1098R | 18 | Accident | 15 | |
| Ret | 2 | Leon Camier | Aprilia RSV4 Factory | 17 | Retirement | 9 | |
| Ret | 121 | Maxime Berger | Ducati 1098R | 10 | Retirement | 17 | |
| Ret | 77 | Chris Vermeulen | Kawasaki ZX-10R | 8 | Retirement | 18 | |
| Ret | 41 |  Noriyuki Haga | Aprilia RSV4 Factory | 6 | Retirement | 4 | |
| Ret | 44 | Roberto Rolfo | Kawasaki ZX-10R | 3 | Accident | 20 | |
| OFFICIAL SUPERBIKE RACE 1 REPORT | |||||||
| Pos. | No. | Rider | Bike | Laps | Time/Retired | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 7 | Carlos Checa | Ducati 1098R | 22 | 35:38.693 | 1 | 25 |
| 2 | 1 | Max Biaggi | Aprilia RSV4 Factory | 22 | +0.524 | 6 | 20 |
| 3 | 4 | Jonathan Rea | Honda CBR1000RR | 22 | +3.584 | 5 | 16 |
| 4 | 2 | Leon Camier | Aprilia RSV4 Factory | 22 | +5.913 | 9 | 13 |
| 5 | 91 | Leon Haslam | BMW S1000RR | 22 | +16.916 | 12 | 11 |
| 6 | 58 | Eugene Laverty | Yamaha YZF-R1 | 22 | +17.375 | 3 | 10 |
| 7 | 84 | Michel Fabrizio | Suzuki GSX-R1000 | 22 | +17.740 | 13 | 9 |
| 8 | 41 | Noriyuki Haga | Aprilia RSV4 Factory | 22 | +18.329 | 4 | 8 |
| 9 | 96 | Jakub Smrž | Ducati 1098R | 22 | +18.378 | 2 | 7 |
| 10 | 50 | Sylvain Guintoli | Ducati 1098R | 22 | +18.404 | 15 | 6 |
| 11 | 66 | Tom Sykes | Kawasaki ZX-10R | 22 | +26.284 | 7 | 5 |
| 12 | 17 | Joan Lascorz | Kawasaki ZX-10R | 22 | +27.053 | 11 | 4 |
| 13 | 121 | Maxime Berger | Ducati 1098R | 22 | +38.614 | 17 | 3 |
| 14 | 111 | Rubén Xaus | Honda CBR1000RR | 22 | +40.824 | 14 | 2 |
| 15 | 86 | Ayrton Badovini | BMW S1000RR | 22 | +40.953 | 16 | 1 |
| 16 | 44 | Roberto Rolfo | Kawasaki ZX-10R | 22 | +40.982 | 19 | |
| 17 | 37 | Barry Veneman | BMW S1000RR | 22 | +45.423 | 18 | |
| 18 | 8 | Mark Aitchison | Kawasaki ZX-10R | 19 | +3 laps | 20 | |
| Ret | 33 | Marco Melandri | Yamaha YZF-R1 | 16 | Accident | 8 | |
| Ret | 11 | Troy Corser | BMW S1000RR | 7 | Accident | 10 | |
| DNS | 77 | Chris Vermeulen | Kawasaki ZX-10R | Did not start | |||
| OFFICIAL SUPERBIKE RACE 2 REPORT | |||||||
| Pos. | No. | Rider | Bike | Laps | Time/Retired | Grid | Points |
|---|---|---|---|---|---|---|---|
| 1 | 7 | Chaz Davies | Yamaha YZF-R6 | 16 | 26:37.029 | 6 | 25 |
| 2 | 99 | Fabien Foret | Honda CBR600RR | 16 | +7.236 | 4 | 20 |
| 3 | 23 | Broc Parkes | Kawasaki ZX-6R | 16 | +8.084 | 3 | 16 |
| 4 | 127 |  Robbin Harms | Honda CBR600RR | 16 | +8.191 | 9 | 13 |
| 5 | 44 | David Salom | Kawasaki ZX-6R | 16 | +9.122 | 7 | 11 |
| 6 | 55 | Massimo Roccoli | Kawasaki ZX-6R | 16 | +9.222 | 10 | 10 |
| 7 | 77 | James Ellison | Honda CBR600RR | 16 | +14.616 | 12 | 9 |
| 8 | 117 |  Miguel Praia | Honda CBR600RR | 16 | +32.623 | 14 | 8 |
| 9 | 60 |  Vladimir Ivanov | Honda CBR600RR | 16 | +40.668 | 16 | 7 |
| 10 | 38 |  Balázs Németh | Honda CBR600RR | 16 | +40.727 | 24 | 6 |
| 11 | 10 | Imre Tóth | Honda CBR600RR | 16 | +41.439 | 23 | 5 |
| 12 | 28 |  Paweł Szkopek | Honda CBR600RR | 16 | +54.039 | 22 | 4 |
| 13 | 8 |  Bastien Chesaux | Honda CBR600RR | 16 | +56.749 | 25 | 3 |
| 14 | 91 | Danilo Dell'Omo | Triumph Daytona 675 | 16 | +57.345 | 21 | 2 |
| 15 | 95 |  Robert Mureșan | Honda CBR600RR | 16 | +1:03.893 | 28 | 1 |
| 16 | 4 | Gino Rea | Honda CBR600RR | 16 | +1:14.746 | 11 | |
| 17 | 33 |  Yves Polzer | Yamaha YZF-R6 | 16 | +1:15.031 | 29 | |
| 18 | 19 | Mitchell Pirotta | Honda CBR600RR | 16 | +1:24.870 | 30 | |
| Ret | 57 | Kervin Bos | Yamaha YZF-R6 | 14 | Retirement | 19 | |
| Ret | 31 | Vittorio Iannuzzo | Kawasaki ZX-6R | 11 | Accident | 15 | |
| Ret | 53 | Jos van der Aa | Yamaha YZF-R6 | 11 | Accident | 20 | |
| Ret | 21 | Florian Marino | Honda CBR600RR | 8 | Retirement | 5 | |
| Ret | 9 | Luca Scassa | Yamaha YZF-R6 | 7 | Accident | 1 | |
| Ret | 87 | Luca Marconi | Yamaha YZF-R6 | 7 | Accident | 27 | |
| Ret | 34 |  Ronan Quarmby | Triumph Daytona 675 | 4 | Retirement | 17 | |
| Ret | 69 | Ondřej Ježek | Honda CBR600RR | 1 | Accident | 18 | |
| DNS | 11 | Sam Lowes | Honda CBR600RR | 0 | Did not restart | 2 | |
| DNS | 5 |  Alexander Lundh | Honda CBR600RR | 0 | Did not restart | 13 | |
| DNS | 25 |  Marko Jerman | Triumph Daytona 675 | 0 | Did not restart | 26 | |
| DSQ | 22 | Roberto Tamburini | Yamaha YZF-R6 | 16 | Disqualified | 8 | |
| DNQ | 73 | Oleg Pozdneev | Yamaha YZF-R6 | Did not qualify | |||
| DNQ | 24 | Eduard Blokhin | Yamaha YZF-R6 | Did not qualify | |||
| OFFICIAL SUPERSPORT RACE REPORT | |||||||